You are leading people to believe a BYU commit signed WITHOUT the ability to become a part of the university and ended up choosing to go to the U because its easier to be admitted.
Problem #1: BYU's admission has nothing to do with NCAA clearinghouse, since that is what this case is particularly talking about. BYU can admit who they want and NCAA clearinghouse can't say otherwise.
However, the NCAA clearinghouse can stop a student-athlete from participating in D-1 level competition if he doesn't have certain requirements. In extenuating circumstances (let's say a kid that goes to school in Tonga for 3 years of high school, then transfers to Utah), there exists a waiver to those requirements. As long as the student demonstrates the circumstances don't accurately depict the student-athletes academic ability(as in the "hypothetical" case of a student from Tonga who scores exceptionally well on the ACT) then he is a great candidate for such a waiver.

In summary, you're wrong to believe this had anything to do with BYU academics vs Utah academics, which is an unfounded perception your community has fed you. Bad Mormon boy!