Like nobody ever had "lived experiences" previous to, say, 1968... It's not a new thing. Check the Book of Judges: "Every man did what was right in his own eyes."
I call this the "sensus infidelium".
This priest is pushing the ‘conscience as King’ argument. The same crap that said Hitler may not really have sinned, if HE didn’t think he was doing anything wrong by directing the killing of all those people during WWII.