I'm sorry, but that's not exactly true. It is certainly failing some, especially with the inherent bias they include in the slant of their teaching. But some kids just aren't smart enough to do college work. College classes aren't for everybody. The idea that everybody should have a college education dumbs down a college education.
If a player that has the kind of support that OU offers, requires of their athletes, his failing his academics is almost always for one of two reasons. Either he's just not trying, or he's just not able. There are surely occasional exceptions, but not many. OU's
I'm not talking about guys 30 or 40 years ago. Some academics in those days were abysmal. But that's to the case any more.