I think you're reading too much into a tweet that doesn't even offer a direct quote.
Podkolzin is under contract with a KHL team. He probably isn't quite ready for the NHL (he doesn't turn 18 until the 24th of this month) -- so even if the KHL contract isn't a thing, he's probably still at least one year away from being a regular on any NHL roster. I haven't seen anything that suggests he's being an ass about things or that he plans on being an ass about things two years from now.