Discussion: Are new ‘mechanics’ on champions healthy to the game?

I just want people’s consensus on this one. I’ve seen some people who wanted champions having those new mechanics hate them like Sylas’s ultimate steal, Zoe’s summoner spell pickups and (to bring a lesser out in the spotlight) Ornn’s Brittle. While I personally feel a little indifferent and treat them like any other new champs, what are your thoughts on them? Should we have them in the game? What mechanics are or aren’t healthy for you?