Those (if you mean NCAA guidelines) are not anymore enforceable than the enhanced educational benefits which was the Supreme Court case.
There isn't anything complex about this, if they (NCAA) try and restrict trade they are most likely in violation of the Sherman Act.
If the NCAA takes action against a player, they could be held liable under the Sherman Act - just like they currently are in countless suits. Further, the Sherman Act has criminal penalties available to a prosecutor.
If they contact the schools and ask a school to bring the hammer down on a player, that too would easily be an anti-trust violation.
My guess is they are trying to get schools to do more self-enforcing. LOL