Keeping in mind that I'm an idiot with a noted history of poor decision making, and my sources like my friends are imaginary, I think what's going on is similar to the phenomenon found in corporate America where companies that recruit externally for a position tend to pay higher dollar than they do to retain their own employees. Thus, the incentives are structured in a way that encouraged employees to go on the move - why get a small annual raise when leaving for a new company nets you a 10-15% increase?
Applied to the transfer portal, the "market" for talent is out of whack right now. High school players are locked in, a certain number of guys feel fine with their situation and don't want to leave, but it sure is tempting for everyone else with some level of talent to try and milk out the maximum offer they can get, which is higher than normal right now.
And in corporate America, when the new hire makes more than everybody else on the team, it often doesn't go well, even when they're an exceptional performer, because nobody that's put in the blood, sweat, and tears likes it when some sparkly new person shows up and makes bank without proving anything.
If my reading of the situation is right, Syracuse is like the company that's deciding they aren't going to play that game all the way. Yes, they'll bring talent in from outside, because they need talent and it's a viable channel. But they aren't going to overpay, and coming off the season they just did, they aren't going to risk blowing up chemistry by having new unknowns get NIL better than the guys that have already contributed to something. And that's a rough spot to be in when the NIL market is out of whack.
The one thing I do find funny is that not long sgo there was so much speculation that guys weren't really worth much more than their scholarship and NIL wouldn't equate to much. Well... we're seeing for a lot of guys that's not the case, and they're worth a whole lot more than their scholarship. Sure, the collectives have completely destroyed the ROI structures that would have given NIL some guard rails, but still, here we are.