re: Does anyone seriously believe that other programs are doing this?

Yes. What makes OM different isn't the level of cheating, but the level of expectations prior. It gives the NCAA more impetus to investigate thoroughly because they have an easier time singling out a few 4 & 5 stars at OM and investigating them than they would in the glut of 4 & 5 stars at the Big 6 universities. You make the mistake of assuming that just because talent is available, the boosters at major programs have less incentive. These programs are still competing with each other for talent. UF has fertile grounds...that Bama, Auburn, Georgia, Miami, FSU, etc are all getting involved in. You can't just say, "I'm here from UF, you lucky-son-of-a-bitch." You have to sell yourself against other major powers to get the recruit. (I'm not picking on UF. They're just an easy example. All programs have to do this.)