Sosij sizzl
To suggest that Airservices is culpable for another ICAO State's procedures and should be informing them of their shortcomings is pure farce.
I think I have mentioned that rather than being farce, Airservices is quite entitled to point out other State's shortcomings, and is quite entitled to
require airspace over Australian sovereign territory be operated in any manner
Australia sees fit. If you are armed with that information, Airservices Duty of Care comes into play. Whilst Heffernan used insulting language, his point was
entirely germane. He is quite right in that it appears AsA's attitude (via Harfield) is that "It isn't our airspace, so it's not our business". That attitude may not be good enough, especially in a venue such as the Coroners Court- let alone a Senate hearing. It is Australian territory, delegated to another provider.
It's probable that that fact has just been overlooked, but can no longer (and nor should it) be ignored.