Who cares if these people use weed? It’s not like it’s an athletic advantage, although personally, I don’t care if all the sport people use whatever drugs. It’s all a cult anyway.
Right, I also don’t care what drugs they take, they are simply entertainers, if “artificial” things make them more entertaining, so what what? If plastic surgery makes an actress more entertaining, what’s the difference?
Any discipline in this area should be the decision of individual teams.