Oh don't worry, I'm convinced that Usman doesn't want to fight Khamzat. I'm sure he'll retire soon, in fact. But I also think there's not much pressure to fight Khamzat right now, the latter hasn't done much to put himself into the position of a title challenger, so what Usman wants or not deep inside is a bit moot. One wouldn't expect the reigning champ and GOAT contender to call out fighters with a win against the #10 ranked guy. Also the Khamzat hype is a very local phenomenon on certain internet forums. Casual mma fans don't care about Khamzat (yet) and he's not a draw (yet).