Just deal with it. I like to see community members who are reasonable and don't make customer demands from a group of unpaid modders but its just not in the cards. I was disappointed and annoyed when the campaign wasn't released as well (annoyed at the fact rather than the modders) but they're doing the best they can for an unpaid team and releasing pics of progress while answering questions wherever possible and they have at the very least released the battles as a test. Instead of attempting to undermine their motivation by calling them out you could perhaps encourage them or better yet help out or let it go and go play DEI while you wait. As Willhelm mentioned its an entire overhaul/change of theme which means everything needs to be changed buildings/tech tree/cities/units/building chains/descriptions let alone mechanics/generals etc etc etc.
From what we've seen so far AE looks extremely promising and the battles feel great at least imo. I'd like to think that people are getting
with the modders because of the huge desire and expectations this mod draws