Right, my understanding from my upbringing it's exactly that, a facilitator. Kinda like not shooting the messenger and the priest is just that, the messenger (guide) to the person confessing. The priest should be impartial to it all, a witness on behalf of God, and not one to judge, that is for God to do.
Now, in terms of going back to confessing to heinous items again and again and that morality, for sure. I definitely think plenty of people see sinning as an act you can always ask atonement for, and that is enabling. But that is more on that person than anything else.