Personally, I think you're going to have upsets no matter what. Some of the higher seeds won't have as much to play for while a lower-seeded team may be scrapping just to get into the NCAAs. To me, the whole idea of all 16 teams getting in is a bit much. A team that flops throughout the regular season should have no shot at postseason play. In weaker conferences where only one team gets into the NCAA tournament, I could at least listen to the argument of including everyone. But conferences like the Big East that get numerous bids don't need to reward every single team with a conference tournament berth.
Only college basketball coaches could complain about getting too many automatic byes.