A bracket like this may take away easy wins from bubble teams. The way it is set up now a #6 seed in the BTT plays the 2nd worst team in the Big Ten which is usually a win and gives them momentum going into the game against the #3 seed which has a bye. Historically the #6 seed has done well in the BTT, that may change taking away their "warm up" game. In a 14 team bracket the #6 now plays a team that might be playing for a spot into a post season tournament. Like wise the #7 seed may be playing a fringe bubble team as well going against the #10 seed.
On good thing about expansion is the first round should present better matchups in the tournament. They will be going from 4 games up to 6, makes me wonder if they keep the first round all at the same site. If they do that first game would have to be played fairly early in the morning.