It might be unfair, but given PSU's history, running a program where this happens should be grounds for termination of the coach, even if the coach wasn't covering it up. The only question in my mind is whether the allegations here are true. I hope they are not. But if they are and a 17 year old was taken to the PSU locker room/groomed/and then assaulted when they were 18, the coach has to be fired. There are also the allegations that members of the team were sexually assaulted/photographed with the photos shared on a snapchat that everyone knew about....Not good either. You can't run a program where that behavior happens at PSU in athletic facilities given the history of the university.
It's not the coaches fault legally, but running a program with that type of culture should put you out of a job at PSU. But like I said, these are just allegations and need to be supported by evidence and investigated by PSU.