I haven't followed any of the trailers, so I just watched the faction you fags complain about I don't see an issue
https://www.youtube.com/watch?v=nd0EyUol-ec
Those designs are in line with what we were getting in HoMM 3-5.

But I am concerned that all units have abilities, and the majority of them doesn't end the turn. Some of them sound very OP. It seems the combat will be all about initiative, if you go first you can use your abilities first and gain massive advantage.