I don't know what you're trying to imply when the simple and obvious answer is that he's both a human and a Pokemon.I just realised, the guy who had was in the pink suit used a Mega stone but was also the owner of the Mega Evolution bracelet, so that means he's a Pokemon that can evolve himself. That or he is a human that can Mega Evolve. Does this mean Human Evolution is now possible? I think so.
I mean geez just think about it logically, what're you complicating things for.