Feedback for all of 5.2 is pretty much go back to 5.0. I don't think any of the 5.2 gameplay changes were a step in the right direction.
I don't believe everything was completely hated globally by players although some of the major changes generally were. I think those same major changes were blowing under the carpet what could be considered as good improvements to the game (5.2 patch notes had quite a lot of changes).
Even if we would want to, reverting to 5.0 would not really be an option as it would take A LOT of time to get there while keeping the content that had to drop with 5.2.