Xavier's season, it should be noted, is not over. There is still technically a chance, I guess, that the committee puts them into the NCAA tournament. If that doesn't happen, there's always the possibility of an NIT bid. Despite that, the season we thought we were we were getting when X was running Oklahoma off the floor in December is truly dead and buried.
So what happened? A lot of things, obviously. The most glaring is Covid.
When Xavier was putting the finishing touches on Oklahoma, they were moving to 7-0. At that time, nobody in the nation had played as many games.