The failure to take action against UNC, undemines the credibility (such as it is) of the APR. Have kids transfer? We'll sanction you. Have a kid struggle with college? You are in big trouble. Have a lot kids move on to a pro career and not finish their last semester? You can't participate in March Madness. Set up fake classes for kids, you are fine so long as you let other undergrads falsify their records.
At a minimum, UNC should be forced to recalculate APRs with a 0.00 grade for each bogus course. Practically speaking they should be looking at PSU's punishment. It is hard to imagine at bigger lack of institutional control. Oh by the way each game they played a kid who would have ineligible but for one or more bogus course they should should have to forfeit.
Will it happen? No. Just another example of how the NCAA has failed in it's core mission, just another reason why it should be shut down.