You are stretching it a bit to call this an upset. I saw BYU lose to Gonzaga in their conference championship, and they are not great. Nor is Rutgers. But an 11 beating a 6 is meaningful, I agree.
The potential for a real upset was to see Drexel 25-25 with Georgia at the half. But I knew it would not last, and it didn't. Also Stephen F. Austin had a 48-42 lead on Georgia Tech in the 4th quarter, but decided not to score any more . ( i know, they got a few points. But they basically went ice cold ) and lost in OT ).
I am with you on wanting to see some upsets, as indicators of how far the women's game has come. On the men's side, for example, a 15 ( Oral Roberts ) has beaten a 2 seed ( Ohio State ), and now advanced to the sweet 16, after beating Florida. No such action is going to happen in the women's draw. Not yet. Some of these lower seeded teams have an excellent player, or two. But rarely seven eight, as the top teams have. But there is progress.