Oh well, it's for him to say.
Specifically he needs to address why the lessons learnt in combat by every other UH1B operator from 1962 onwards were not applied by the RAAF by 1966. Up to and including the work done by DARPA on gunships, armoured seats, etc.
That's four good years for the RAAF to think about it.
He might have a good answer.
I may not know everything, but I have a good temporal sense and I am patient.
Regards
Mick