I agree, but ignoring what Franklin did to that program isn't right either. The NCAA blows the whole thing up (rightfully so) in 2011. You get two years of mediocrity under Bill O'Brien before Franklin comes in, still under a cloud of a postseason ban and scholarship restrictions (remember when those were a thing?).
To buddha's point, they could have easily become Nebraska right then and there. Or worse, SMU. They were on about as thin of ice as possible not just with the NCAA, but with society. National news covered Penn State students protesting the removal of a statute honoring a man who covered up child sexual abuse. It was as ugly as it gets in Happy Valley. There were serious talks in 2011 about kicking them out of the Big Ten!
Instead of relegating to irrelevancy though, he's gone 104-42. And while yes, it seems like they are just stuck as the #15 team in the country, perpetually unable to beat teams above their weight class, there are far worse places to be.
To counter my own point though, Mark Richt went 145-51 in 15 seasons at Georgia but never won the Natty. They made the move to Kirby Smart and he's won two in nine years. So sometimes you do need to make that change to put yourself over the edge. I just think you're just as likely to put a Luke Fickell, Hugh Freeze, Matt Rhule, or Lane Kiffin in charge, and set your program back 5-10 years.