Not sure what Riot was thinking when they changed Ali's WQ combo...
Why did they do this? Making it impossible to mess up is making Alistar way too oppressive at World's and they knew this would happen in the long run when they buffed him.
And the sad part is, they won't nerf this aspect of him. Claiming it's something else that's causing him to be too strong and they'll end up nerfing that aspect.