You're right. Those were not great wins. As you say, they were merely good wins. They were wins I really enjoyed though. Actually I would say Nebraska's last great win in football was over Texas A&M in the Big 12 championship in 1997 followed by their win over Payton Manning and Tennesse in the Bowl game the same year.
I don't have anything against the BB team. I think the BB team is having a good year. They might qualify for the NCAA tournament. They have a great home record. They beat tOSU and almost beat Michigan in Lincoln.
If they beat Duke in the sweet 16 they will have a great win similar to the wins by the football team in 1997.
I think if the basketball team makes the tournament and beats anyone, it would be a better win than any the football team had in 1997. I say that because in 1997, Nebraska was a dynasty in football and was pretty much expected to beat almost anyone who stepped on the field with them. This years Husker basketball team was picked to finish dead last in the conference and the program as a whole doesn't really have much to hang their hat on. No NCAA tournament wins ever. Its all about perspective.
I have noticed many teams have ranked teams in both football and basketball. I hope that Nebraska joins this group soon.