to players should not exercise their rights.

You conveniently ignored the word commitment. You also have ignored any obligation on behalf of the one receiving the benefits. Was the player paid and given a scholarship to play for BYU football. Did the player live up to the implied contract? (The answer seems to be no). Now BYU would not do this, but could a party sue for breach of contract?

We'll say they cannot. Does that mean that not keeping your word is ok as long as it is within your rights? For example a guy goes around proposing to girls to get free stuff at a wedding that he never intends to go through with. Is that ok with you? He wastes some time and money from a bride, but he should do it because it benefits him and he can? But is that not ok because it is one person and BYU and its fans and donors are a giant conglomerate that don't need their money nor time?

You advocating for a world that men should not live up to what they agreed to simply because they can is a very dangerous one. While I will fully admit that none of us know the intimate details of one individual, the system is in fact broken. That seems obvious to most.

Call us all mental midgets for lamenting that.