Rotating the donk the other way, especially one as powerful as the Griffon, would really make your eyes water in the wrong circumstances. It would fly very differently.
50+ years ago, when I was a 17 year old sprog with a brand new PPL and 40 hours on the Fleet 80 'Canuck' (with clockwise rotation) a friend with access to a Chippy offered me a flight in it - which I accepted, of course - it was
FREE.
Without much briefing he passed control to me as we lined up on the runway. As 'I' lifted off I got the impression he had taken control of it as the aircraft swung right, slightly nose down; I let him continue what he wanted to do - he was in command, wasn't he?
After going in between the hangars of Carp airport at 70' with nobody in real control, Steve said "Next time I fly it"!
We both learned about 27 lessons that lovely day and 'next time I fly it' wasn't one of them!