The same thing that gets trotted out every new expansion:
1) Don't complain about what was shown pre-release until you try it yourself!
Followed by
2) Don't complain about it until you reach max level!
Followed by
3) Don't complain about it until the first raid tier is here!
Followed by
4) You're just playing it wrong
5) Meanwhile, the thing that was complained about before the expansion drops, the developers acknowledge something is wrong and take 6 months to fix it (on top of the months we took to get to this point) instead of taking feedback early and fixing it then. To which the white knights will shout from the rooftops:
"Look at SE listening to our feedback!!"