Why? Why nerf Ghostface?
It's not exactly why you nerfed him, it's that you decided to. The man really doesn't have that much going for him. His stalk is only reliable when survivors aren't expecting it, and even then he struggles. The man is a basic M1 with almost zero counterplay to loops. His shroud only will help on tall walls, but the cooldown is too harsh to reliably use.
The guy will probably remain mid-tier until survivors become even more use to him. With one single pallet, you can run to the opposite side of the map as long as you are efficient and not running sideways much. The man can't do anything.