Well, their infractions were different. Tressel was in a legal pickle when it came to the Tat-5. Pryor, et al., are the ones who did the pickling.
But, it was a scandal that should never have been as huge as it was. Tressel should have gotten leeway from the NCAA given how his knowledge was given to him inappropriately by an investigating lawyer. The Tat-5 suspensions levied by the NCAA similar to other incidents of that magnitude $ amount. The 5 year ban from Ohio State's campus, though, was completely, 100% uncalled for. Why does that make any sense at all? "He's a grown man now?" F-you, Gene. He was a grown man when he plowed over Taylor Mayes as a sophomore.