The facts are hard to tweeze out of this story.
It seems that a girl told a priest in a confessional that a 64 year old man was raping her and the priest treated that as a confession?
Importantly, communist nations with Catholics and other Orthodox established a priority early on that all confessionals must be electronically bugged, because what was said within was of intense interest to the secret police.
Since doctor-patient confidentiality has been effectively destroyed by HIPAA, the confessional has become the most important target of the authoritarian in the US.
(I might add that government wants total control over all religious sacraments, marriage being just the most recent to be absorbed. Eventually government wants recognition as “god”, taking over the role from God.)
If what Bayhi heard was in fact a confession,
The whole idea of the State trying to force a priest to tell what he heard in Confession is stupid.
What guilty murderer, etc. would go to Confession if the State succeeds? So, this is an attempt by the State to prevent people from going to Confession if they must admit any breach of law.
By the way, the priest must not grant forgiveness to such a confessor unless he (the confessor) admits his sin to the government.
The first Amendment to the Federal Constitution says Congress shall make no law. As it is there is no congressional law in question here, so Technically and literally the 1st amendment to the Federal Constitution is ill-relevant on this issue.
What is relevant is the Louisiana Constitution which probably does have some rather point full things to say on the issue.