You can't balance FB by comparing it's damage to TK push (besides, bomber range>TKP range).
First off, bomber range is significantly less than that of TK push...TK push has a range of 4200 while bombers have ranges of 2400...even if you account for the fact that some bombers will penetrate that range (4/9/14, to be exact) before the ability is activated, that still is a great enough difference to prevent most bombers from firing a single shot...
As yes, I can compare FB's damage to that of TK push...FB does 30/45/60 while TK push does 20/30/40 damage and completely disrupts bombing runs and costs 90 (instead of 100 AM)...so for less AM I get far better SC cover and slightly less damage with TK...I'm seeing a clear winner here...in fact, both even have comparable cooldowns (10/9/8 for FB vs. 10s for TK push)...I'm sorry, but FB just doesn't compare to TK push...
You're taking it out of context. TEC has crazy tanking ability while Advent has next to none. EVERY TEC player spams hoshikos and repair bays. It's hard to kill skilled players Kol and it's ridiculously easy to kill halcyon.
Oh I agree its hard to kill the Kol...in fact I think it's the hardest ship to kill...but it's pretty much worthless until level 5 in terms of utility whereas a level 1 Halcyon has high utility immediately even in the late game....obviously if you don't think TK push is a good ability then you won't see that (but if you really doubt TK push's effectiveness then I'm really wondering what types of games you play)...
Even if you recognize the inferiority of FB, you could argue (as you have) that TK push is irrelevant because a Halcyon will get killed...you're right, it will...in fact, any low level capital ship will easily get killed (and the Kol is no exception)...at low levels a Kol isn't going to be that much more resilient than a Halcyon but it will be far more useless...
Even if you argue that the Kol has great potential because it's very potent at level 5 (and its more likely to get to that potential since its harder to kill), I would say that a level 5 Halcyon is still a much better ship...all three Halcyon abilities are very useful (AA being more an early ability) while the Kol has one useful ability, flak burst (which is inferior to the Halcyon's equivalent at all 3 levels)...
Advent have their anti-sc ability on carrier cap instead of a battleship like other 2 races. Besides most of it's hp is in shields, repair bays repair hull. Thought it should be obvious.
ALL Advent capital ships have more shields than hull...fine, put TK push on the Radiance, it still is going to be just as easy of a kill for Vasari bombers/kanraks as any other Advent capital ship (the armor from energy absorption might buy you a little time, but not much more)...the problem here is Advent's weakness to PMs and not the utility of advent capital ship abilities....
TEC "tanking" late game is a complete joke unless you are only talking about against Vasari...Advent battleballs with repulsion, shield projection, shield regeneration, and TK push are exceptionally difficult to tackle with anything less than phase missiles, and Vasari overseers can give a ship thousands of HP in seconds...hoshikos are great early on but as the game progresses TEC do not have the ability to protect caps like the other two factions...
TEC "tanking" only exists if you compare completely unsupported ships which is just plain illogical...early game your argument stands (mainly because support ships other than hoshikos aren't common), but that doesn't matter because Kol's are useless early game...late game (when Kols allegedly are more useful) both Advent and Vasari are far better at keeping capital ships and SBs alive unless PMs are involved...a well supported Kol is the only exception to this rule if it is a higher level Kol....the logical fallacy commonly made here is equating late game with higher level...capital ships die, they do, and there is no guarantee you'll have high level capital ships late game...every capital ship starts at level 1, and needs to justify its existence at low levels because there is no guarantee you'll get it to even level 5...most times that I see a fleet with several high level capital ships, that player has already dominated and won so of course any capital ship combo may work for them...
Now, that little caveat unless PM's are involved is important because it would be a little unfair to write off an entire faction...furthermore, I do agree there is something to be said for having a more resilient capital ship that's arguably harder to lose...so let's make a fair comparison, a Kol with FB vs. a Kol with TK push...I would take the Kol with TK push any day, it is more powerful at level 3 and certainly more useful at level 1 and 2...
And that's the main point here...as an ability, FB simply does not compare well to TK push...even in modded versions where FB was buffed, I failed to ever find it as useful as TK push or JW...I tried, I really did...I played a match and built two Kols and got both to level 6 and put level 3 FB on both of them...this modded FB had greater range and a faster cooldown than what is implemented now yet it did not serve me well at all...
The most memorable battle was me vs. a massive Vasari fleet...it was late game and I was outnumbered a little in fleet size but was on defense with an SB and was comparable in number of SC (which is what is relevant here)...despite 2 Kols spamming FB as much as they could (which by the way was easier because adaptive forcefield was passive) I hardly made a dent in the Vasari SC because two skirantras were spamming repair aura...FB simply did not succeed in killing any significant amount of SC (even with fighter/flak support) and that was with 2 Kols using buffed versions of FB...
Obviously you have no reason to believe me since I don't have that replay (and I wish I really did), but nevertheless it's not just high minded theory that makes me question flak burst...
I don't advocate the Kol being buffed out of sentiment or because "it looks cool"...I have consistently advocated buffs to all underused capital ships...but seriously, the Kol is near the bottom of the pack...there are only two ships, the marauder and the Revelation, that I would say are more underused than the Kol...that's 2 out of 15, and why can't I advocate improving all ships that need improvements? Kol just happens to be one of them (and also happens to be on topic while the revelation and marauder aren't)...