I can understand the reviewer point of view; I haven't the game yet, but I've seen many in-game videos: the game feels really unpolished.
I compare Elemental to the first Age Of Wonder, my favourite one in the genre. AoW isn't as sophisticated like EWoM wants to be, but each functionality the game offers to the user is simple, clear and appealing. On the other side there EWoM, that (at the moment) looks like a Excel sheet to fill up to obtain a result 
A stupid example:
- In AoW you click on a unit to select it, then click on a tile to set as destination for the movement, and a colorful (and well visible) trail of arrows show you the path and how many turns the unit will take to reach the destination; the amount of path the unit will walk in the current turn is indicated by gold arrows, the leftover is grey. As expected, if you deselect and reselect the unit the arrows trail will be visible again.
- EWoM you click on a unit and you barely know it is selected (have you selected a unit or a land tile?). You click on a destination point and an ugly X appears on the target tile. The unit will make its way to the destination but you won't know the path it will follow or the time it will take to reach it. Deselect and reselect the unit, and you'll barely find the previously designated target tile.
Now multiply this "feature comparison" for every feature of the game, and you can easily understand the headaches the common users will have.
I'm a WEB developer, at work I would say "this web page misses a good CSS".
I was waiting for this game to come out. But now that it's out, I'll just follow the future developments as I've done in the last 2 years, and wait till the game will be ready (from my point of view) before buying it.
I'm sure it'll be a great game, it is an ambitious project but I know you'll make a good job with it. I'll love it, I know 