They’re not doing something like this because it’s not inclusive of the women’s programs.
Every university that has adopted a new nickname/mascot/logo since at least the 1990s has made something gender-neutral for this reason.
This is not me endorsing or advocating for only gender-neutral branding. Just like I don’t personally advocate moving on from the fighting Illini nickname. I’m a 40-something dinosaur who likes the old traditions. But let’s be realistic. The future won’t be dictated by people my age. These trends have gone consistently in one direction for the past 50 years and the pressure to conform to an ethnicity-free, gender-inclusive identity is going to get more intense, not less.