Then by all means, I'd encourage Carlsen to start the XFL of chess tournaments! The XCL?
Whatever the case is, I don't think a public crusade is the right option. If he had conclusive evidence of him cheating during the match, he wouldn't have made such a protracted statement on it weeks afterwards.
Yeah, some of it seems like regret that he didn't withdraw from the tournament before the match, and some of it doubling down.
Still could be correct, however. I suspect that Carlsen has certain knowledge of Hans cheating at games later than 16 but not the one he lost that hasn't been revealed yet.
Whatever the case is, I don't think a public crusade is the right option. If he had conclusive evidence of him cheating during the match, he wouldn't have made such a protracted statement on it weeks afterwards.