The only people that will be complaining are the same people that have been griping about the change from the very beginning. The rest of us have already tried it on ptr and are fine with it .
And in game we will know who the lazy players all are because they will be the ones that cant do simple things like cc mobs. They will either die or get kicked then come crying to the forums about how difficult dungeons are now that they have to actually play their class.
So Ill have the popcorn ready.