Well, I actually think your Boston U example is instructive. There are certain baseball schools, like Cal State Fullerton or Dallas Baptist or even Lewis-Clark that probably have robust NIL programs. I just don't think it's very big money, nor are the money people at SEC or Big 12 schools putting that kind of funding into baseball.
It's a system that should really be more like hockey, where a drafted player can choose -with the team's input - whether to play college or pro. Of course in hockey "pro" is still not run by the NHL teams. Now they are saying Canadian major junior players will eventually preserve their NCAA eligibility. It would actually make a lot of sense if baseball wound up being the same. A kid could take a $200K bonus and get paid to play in the minors for a few years and then decide to go to college and still play. With NIL, what's the difference now?