They are only OP in the right hands.
Luckily most people that use them appear to be chumps. I assume all the bad players heard they were OP and rolled them.
This game just needs less cc in general. Unfortunately sorcs are the masters of it, which is further compounded by the fact everyone and their cat plays as one.
Constant WZ's of 5 sorcs bouncing around, stunning, KB'ing, rooting and constantly snaring are just a terrible inditement of this game.