So I follow up the last post I made. Maybe that was just a visual bug? But I just got the chance to play against another Fizz and the Hitbox was just as ridiculous as before.
However, if this is intended, that the Ult is supposed to snap on you, then it definetely deserves a nerf. Basically when you get hit you are dead 100% of the time. And if it is easy to hit then you will die everytime he got his Ult up. This is disgusting.