I believe what Msgr. Clark is doing is going to the root cause of the problem. He's not absolving the priests or bishops of their sins, but saying that until and unless we clean up the root cause, those kind of priests that do these things will still exist and find their way into the Church.
Of course there are other things we need to do, (like jail the offenders, change procedures in admitting men to the seminary, cooperate with the police, etc), but we still need to attend to the root cause of it all, and he is reiterating what that is.