Rengar one-shots people without his root. LeBlanc one-shots people without her root. Akali has her w. She really doesn't need a stun. Does Pyke need a stun on top of his hook? With the exception of Fizz ult and Shaco's fear, hard cc isn't an iconic feature of any assassins. Between Duskblade's almost-root slow, and the innate speed of an assassin, a hard cc escape is overkill.
All champions need at least one form of hard CC or reliable light CC to be relevant in today's meta.
Does Pyke need a stun on top of his hook?
Yes. Considering it's his only form of escape, his only gapcloser other than popping ult, and he can't build any health at all. So you either leave his dodgeable stun as is or take it away and compensate him with damage or more mobility.
Well Pyke in particular needs the stun and hook because he's a support...
