Doesn't Penal hazard mean guaranteed lost ball or unplayable lie?
Dense trees, gorse, water, OOB - no escape. isn't that the extent of it?
I am yet to experience some of the famous really, nasty deep or coffin type bunkers of PVGC - but they are still escapable, backwards, sideways, etc aren't they?
So, penal - no escape, dead, schickered, stuffed.
So, Barnbougle 7 is then a great hole without a penal hazard.