Realistically guys, there is Zero need for max zoom out if the mini map provides adequate information on current state of the battle.
imho that is a statement likely said by somebody who has not played (enough) SupCom? 
Even in the short lets play video I felt that icons were missing after all. I basically felt "and now add icons so I can quickly tell what is going on from up here".
The minimap is small, the main game view is big. The movement of the camera via zoom nicely can be combined with getting an overview of what is going on via a zoom with icons. In minimap driven games it is a skill to be able to constantly look at the minimap. The player is forced to basically spent a considerable time their with his/her eyes instead on the big main view. An artificial limitation. Can be fun to play with (see starcraft 2), but for a game that wants to be more in the area of "the UI supports the player as much as it can" it is weird.
Now if it has to be "one icon per unit" or "abstract icons for meta units/whatever" is totally open. But having more than just a pretty view of the map when fully zoomed out is very helpful.
I am not saying in any way I expect or want a copy of SupCom btw. I realize by now I think that AOTS has some quite different gameplay aspects. Still the reasons for "no zoom" are still a little weird to me. Yes I can't make out the exact form of the map from high up. So what? The same can be said about a minimap, in fact there you can even make out less details as it is small. I also will know the map perfectly by heart anyway.
Also the modder in me wonders how doable it will be to mod in icons and whether such a mod would provide an advantage (I still think it would, SupCom is proof of that much in that many players basically disabled the minimap it had completely in favor of the zoom). I in the end did manage to mod in a minimap into PA -by reverse engineering the client and reading data from memory directly-, getting icons into AOTS would be a nice new target 
Well I am looking forward to the alpha.