I don't look much into this type of stuff. There are actually some very good D2 programs that could easily beat a lot of lower-level Division 1 teams. This isn't the first time it's happened... D2 teams have nothing to lose and go all out like it's a championship game while a team like Memphis thinks they'll coast through and get the easy win.
Trust me, some of these D2 teams are no joke. That being said it could be a good wake up call for them.