While the individual who did the heinous act may feel religious absolution, that doesn’t immunize them from the legal repercussions of the crime though, so that absolution is legally meaningless, so there is no offset of balance in a legal standpoint.

It also doesn’t allow the clergy member to intimidate or otherwise attack the victim or destroy evidence in the service of a coverup. It just says that one specific kind of communication can’t be compelled as evidence.