The flying thing I agree with, having to re-earn it each expansion, fine, but having to re-earn it every patch and it being timegated and having to wait for Blizzard to decide when it’s ok to earn it isn’t.
The tab targeting thing, I know for a very brief time in I think it was WoD they had it fixed, then promptly broke it again. So fun when there are two or three mobs right in front of me, yet the game seems to think I want to target the mob out of range of me.