Been discussed many places. I think what hinders most NIL is across the university for a couple reasons.
1. We are very conservative in terms of legislation and “playing by the rules” in terms of what gets through the NIL portal. This has been the major hang up on getting the Golden Helmet Collective (Gopher hockey specific NIL group) up and running, which has recruited numerous of the alumni you’re talking about. I think this is the biggest hang up is the University’s approach to compliance
2. We, as a state/University, lag drastically behind our peers in terms of general NIL donations/funds, probably in part because of this feeling like “what’s the point” and that we need a “big fish” to do the donating. While that helps, we also have a massive alumni base and you’re going to do better just getting the average Joe to donate 100-1000 a year than wait for someone to donate over a million in perpetuity. It’s on the U and NIL collectives to figure out how to do this and incentivize donors (ffs this is much easier than they’re making it out to be with licensed, player specific material/jerseys/etc) but the U enjoys putting up more road blocks than helping.
3. Related to above, there is a pull in multiple directions for money with professional sports (would you rather donate to NIL or have a 10 game wild ticket package?).
There are, reportedly, many Gopher hockey alumni who want to donate back to the players (per the GHC) as well as numerous businesses. Some good comments on it on Gopher Puck Live and their podcasts