My priest-friend who is incarcerated says that he thinks justice has been done in his case by the state, not by the church. He has faced the truth about himself and accepted the consequences. He has committed to treatment and works hard at it. If/when he gets out of prison, he will be under supervision.
The church first covered up for his crimes and enabled him to continue committing them. When that didn't work any longer, they walked away from him. I submit that walking away from these men is as evil and as dangerous as moving them around. Accused priests should face the consequences of their behavior. I don't think the criminal justice system is perfect, but it's dramatically better than nothing; it allows the offender to be judged, to take responsibility for his behavior, to get treatment and to rejoin society with support and supervision. The fact that the church does not participate in any of that, and causes men to live in isolation, is just another moral failure by the bishops.