It is a serious matter.
They claimed:
they had a duty to God' to keep sex attacker Gordon Leighton's confession a secret
This is a lie. There is no scriptural basis for declining to answer questions by a due process of law. There is a scriptural basis for doing so:
But there is nothing carefully concealed that will not be revealed, and nothing secret that will not become known.Therefore, whatever you say in the darkness will be heard in the light, and what you whisper in private rooms will be preached from the housetops.
They tried to hide behind clergy/penitent privilege which again is not Biblical.
So yeah - there was a valid story here.