Is it smart to do hot refueling with AVGAS? I say "No".
Would I leave the controls with the rotor still turning? I've done it occasionally in the past but wasn't comfortable with the situation.
Would I do it in a R44? Definetly no more as I've almost lost one R44 doing it.
However, the Safety Notice in the POH is not part of the approved handbook, it's a notice (recommendation) so I guess the OZ CAA can overrule the manufacturer's recommendation. But then again I might be wrong.