It actually makes sense.
Yorick is a split pushing champion, obviouisly, but why though?
The answer is simple when you put it in Riot's perspective, bad players need something to look forward to! So simply Yorick is for those players who can't grasp most champions in the game because the two skill shots on Yorick are VERY easy to land, let me say that again, it's VERY EASY to land them, hense for bad players. Also, once mid game comes around and you're 0/5 don't even sweat it, just spam q and put up your cage on the enemy then just throw your ball on them it's ok, you do so much damage you wouldn't even know what this champion is.
But anyways, Yorick is one top laner to be put in the hands of bad players who just need a win.