[metmom]

Even if the penitent is wrongly denied absolution by the priest, the penitent can appeal to heaven.

Then there's no need for the priest.

1 John 1:8-10 8 If we say we have no sin, we deceive ourselves, and the truth is not in us. 9 If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness. 10 If we say we have not sinned, we make him a liar, and his word is not in us.

1 Timothy 2:5-6 5 For there is one God, and there is one mediator between God and men, the man Christ Jesus, 6 who gave himself as a ransom for all, which is the testimony given at the proper time.

[editor-surveyor]

>> “For there is one God, and there is one mediator between God and men, the man Christ Jesus...” <<

.
It seems that most simply do not wish to accept that responsibility, so they gladly invent mediators out of thin air.