People seem to think unpruning is universally good... the examples at Blizzcon just seemed to bring back more problems then it actually solves.
Resto Druid already has one of the best m+ utilities, yet they get two more CCs back with unpruning.
Disc Priests with atonement healing will be extremely complex with Mind Blast and SW: Death, that's assuming they even proc it. If not, who cares about them.
Rogue's getting poison back won't really change gameplay, but at least Outlaw definately needed the AoE slow back...
Aside of going a step back in the imbalancement in the utility/mobility department, unpruning won't fix any of the fundamental gameplay/rotation issues of many specs.
What else would they do? Actually come up with new stuff?Once they take away abilities from talents and make them baseline, AZERITE ARMOR traits will replace them in the talent tree.
/sad