The report is a public service matter at this stage in my opinion. There are no policy issues involved as far as I can see.
My guess is that Mr. Mrdak will be asked to address this matter, perhaps under the watchful eye of PM & C. The issue will be to convince FAA and ICAO to give us time to correct matters.
Of course the government offers " full support" but that is short of absolute confidence.
The elephant in the room is an FAA audit, and if that happened it would immediately become a policy matter.
If CASA and ATSB decide to brazen it out with only cosmetic changes, then I think the Senate will come back with a blunt and rusty knife next time.
Heads must roll.