I was at the game last night, and to be honest, i didn't even notice MM until almost halftime. It sounds like he was a staple of the tv coverage though which doesn't surprise me, but it didn't appear to me that he was distracting at all.
As for the arena, it's a done deal that is going to happen because the medical school is expanding onto the land where the Erwin Center is located. The new arena will be by the football stadium in order to share parking. And it cannot come soon enough. That is a really bad arena (not Baylor bad, but bad) made worse by poor attendance and a complete lack of enthusiasm amongst the fans.