Hello,
I have bought the game with the last steam sales, and I have read the discussions about tall civilisations.
So I asked myself why you dont just use the right map to help yourself out as the games has a lot of creation-potencial.
Whatever you want for, the editors will help.
To some extend you can adapt with a neat map to fit your needs.
Or not?
I tried to extend the map in a way that you can play not ONLY tall empires but in a way that it is balanced on a 1:1-level with the 'normal play', so that you have equal forces (hopefully), and the 4 administration points at start have never been that valuable.
http://steamcommunity.com/sharedfiles/filedetails/?id=860210012
Usually I would not post a map on a forum, but I was too excited about whether a good map could help to improve this feature, even more, what else than that could support tall civilisations???
Why Isn't a map like this an obvious standard to deliver with a released game???
(Edit: To be clear: 2-4 official maps for each size (the map pack already included!!!) is a joke or not? - we need 50!)
The maps in the steam workshop are on a fun-quality, nothing against that!
But they are not serious for balanced powers like an equal, sophisticated AI or multiplayer turnament.

The answers I get will confirm whether there is real interest into this topic.