You must remember that a major part of the Jimmy B era (1992-2008) was marked by very solid teams, but not superb teams that you cannot expect to make the final four. We made a bunch of tourneys... were a 4 or 5 seed several times...but only once were we a 3 seed, and we won the National Title. With only one team above a 4 seed in that 17 year period, we won a title, and also lost the final. 4s and 5s lose fairly frequently in round one, and only twice did we lose (Vermont and Texas AM (when we were overseeded)). 2004/2005 were disappointing, But overall in this period, with relatively modest teams, we actually did very well in the tourney.
The 2009-2012 period was one of resurgence. With two 3 seeds, and two 1 seeds, sure it would be reasonable to expect more than one elite 8... its a little underwelmin. At the same time, it is a period of really bad luck -- Onauku and Melo.
88-91, I was not following te team much but from afar that seems like a disappointing part of our history. I believe we made one elite 8, and more was expected -- also embarrassing 2-15 defeat, when difference between a 2 and a 15 is larger than today. To be fair the period back ended a year that we could ave won te national title as a 2 seed.
Not really informed about pre 1986.
Overall, when we assess our tourney success, we need to remember that the Jimmy B era is marked by consistently solid teams, and not many superb 1 or 2 seed teams (except for a few periods).