Please, inform me why anybody should pick the new Yorick.

He lacks mobility, he's not nearly as strong as an early game bully as other toplaners like Darius, his ultimate is hilariously buggy, and his CC is breakable and small. While people like Sion who also lacks mobility is bulky enough to survive just by walking away with his shield and has nice CC and damage. Yorick can't do that. Plus sion and EVERY other champion in the game has something Yorick doesn't have, a passive. Yorick's current passive should just be apart of his Q! It's inconsistent and most the time is useless, especially in the early game where he should be strong! Even old Yorick had a passive better then this. It doesn't bring stats, it doesn't do anything majority of the time soo what's even the point? "But you can raise three ghouls!". The ghouls die easier then his wall does to a kogg maw and at best block a skillshot. He overall seems like a bad pick.