The devs have mentioned that the PTR is a place where they test all their wacky internal ideas and not everything is set in stone.
My question is should they be releasing these wacky PTR builds for public testing? I feel that this just causes unnecessary frustration and anxiety when players are kept in the dark with only part of the picture. I think it would be much more beneficial for Blizzard to release their final version of the patch, then for us to test it, provide feedback, then Blizzard iterate on the patch based on feedback.
It's very hard to provide quality feedback when a class has been transformed, but only 20% of the changes are on the PTR. I think the process would work a lot better if they waited until most of the changes were ready for testing and feedback.