His high ban rate is due to lower elos banning him out of fear, but the thing is, most of the nerfs have already made him balanced and he'll only hyper carry if he gets a few kills early or mid game.
Thing is, that's very hard now cause the recent nerf reduced hs health AND his movement speed (Which means he can't trade well early game, his E is on a longer CD and if he wants to survive mid game he'll have to sacrifice his second powerspike for some defense instead unless he's fed).
Like most mid laners that are in the meta, don't feed him or he'll just push a wave into tower then roam.