I gave up on Shadow Priest at the beginning of Cataclysm because I was pretty much worthless unless there were undead in the instance. I got kicked from many a group simply because we didn't have enough CC and I had nothing to contribute in that regard. So if they start taking away CCs again they need to tailor trash pulls accordingly. If the go back to Cataclysm-style dungeon difficulty (like they claimed they were) then they need to leave the CC alone. Otherwise it'll be Cataclysm all over again.