Unis have clubs with a committee structure to run each sport, and an overarching 'Sports Association' or some such, which basically fight out which sport gets what money, and which sport gets time in facilities-eg gym time for fitness training.
A determined, organised student starting at a Uni could make a difference- but it's unlikely to get enacted before they've graduated.
Getting involved in commitees can be a very good thing, and provide lots of transferable skills , useful in job applications- communication, teamwork, setting priorities, resolving differing needs.
However, if someone's competing at national level, they may simply not have time for this.
One more thought: are there other nearby Unis with the required facilities? In a big city that has more than one Uni, it's not uncommon for a student to train and compete at a different Uni to the one they're studying at. Obviously, can't compete for a Uni you're not at when it's strictly a Uni team, like Varsity matches, but in rowing, at least, you can be a member of a Uni Boat Club, and compete in open regattas, without actually necessarily being a student at that Uni.