It seems to me that curse goes all the way back to Dr. Naismith himself. We traded the program's entire future for one game.
"Nebraska, by then known as the "Cornhuskers", played an out-of-state opponent for the first time the following season, defeating James Naismith and Kansas 48–8 in what is still the worst loss in KU history. NU's 1900 team was retroactively ranked second nationally by the Premo-Porretta Power Poll."
https://en.wikipedia.org/wiki/Nebraska_Cornhuskers_men's_basketball#cite_note-5