No, Proko does not. Proko is an atelierfag that only really learned how to copy shit, he never practiced drawing from imagination, INVENTING new things, which is why he completely sucks at it. He admits as much himself.
Also, it's hilarious that you think that just naming ONE artist for your example as to why this is "useless", as opposed to literally every other artist on the face of the planet who does do this sort of thing and are successful at it, is going to prove your point. I mean for crying out loud the OP pic itself is an example of it working. You're a complete and utter dunning-kruger, you have no clue of what you're talking about at all.