This was not an Executive Producer, this guy was low level. He had some small roles handling out challenges and waving the start flag in a lab-coat.
Thats immaterial. You cant go round physically assaulting your co-workers. If you or I were to do that WE would be suspended, if not fired.
I think beating up an underling at workplace is much worse than punching the boss would have been. It is something rich and famous should not be getting away with it.