The Court did not strike down the NCAA's rules as unconstitutional. The Court instead struck them down as a violation of the anti-trust laws passed by Congress in the 19th and 20th century....
Yes.. thanks for the correction. Regular folk like me can confuse everything SCOTUS does as "constitutional or not".. but really they defend The Law of the Land and only judge those Laws themselves against The Consitution... at least that's quick-take on it. They settle questions about laws.
At teh time of the ruling I remember posting that I thought it meant the NCAA could take a whole different path to control NIL... but as you said, they have not... maybe there's a "yet" in there.
My take on the NCAA is that it is about money and benefits to the people that run the NCAA. The perks. Their reason for being is to provide some kind of service to member institutions.. but some member institutions became more important than others because of their value in the main source of revenue to the NCAA.. the Basketball Tourney.
If the NCAA pushes too hard on control, the money programs.. who, likewise, have much control over their conferences for the same reason$$$$... will suggest leaving teh NCAA, starting their own organization with fewer members.. TV contracts including their own post-season tournament and a lot bigger payday for themselves. That would leave teh NCAA "big-wigs" scratching their asses while flying coach to provide "service" to their member institutions... they would likely play out the string, selling their assets and paying themselves pensions.
The NCAA is probably a lot like the UN... more style than substance.