That just means the NIL entity cannot get into an actual agreement with a SA prior to their entering school. They get around this by telling that there are NIL opportunities once they are in school without coming to an agreement or promising anything specific. They can also make the deals one year in duration to get around the continuing enrollment.If it is, then it would seem to be an issue with the current rules. As recently as last October the NCAA released some clarifications to their interim policies such that schools could now do things like cross-promotion with NIL entities, but as far as I know the rule against using enrollment as a condition (or vice-versa) remains in place. The actual wording from the NCAA publication:
"An NIL agreement between a SA and a booster/NIL entity may not be guaranteed or promised contingent on initial or continuing enrollment at a particular institution."