Kai'Sa's Q targeting champions she can't see makes her unreasonably forgiving.

Aside from the blatant removal of counterplay, this removes an option for outplaying Kai'Sa. You can't use a bush to your advantage. Champions with stealth can't be used to wait out your cooldowns and finish her off. If you don't have the burst to 100-0 her, you lose. To put that into perspective, even Akali can be hit by Kai'Sa Q.

And no, Kai'Sa Q is NOT a glorified AOE with misleading visuals, as it follows you like an auto attack. There's just no need for a mechanic like this that dumbs down the role and provides a "you can't outplay me" button. She's be perfectly balanced without this.