If people feel that the military has excessive restricted airspace, the responsible agency for airspace allocation is not the military but is the
CASA Office of Airspace Regulation. See
Civil Aviation Safety Authority - About the OAR.
Specifically the
Commonwealth Airspace Regulations 2007 at
Airspace Regulations 2007 Section 6 states:
6 Designation of prohibited, restricted or danger areas
(1) CASA may, in writing, make a declaration designating an area of Australian territory to be a prohibited area, a restricted area or a danger area.
(2) CASA must not declare an area to be a prohibited area unless, in the opinion of CASA, it is necessary for reasons of military necessity to prohibit the flight of aircraft over the area.
(3) CASA must not declare an area to be a restricted area unless, in the opinion of CASA, it is necessary to restrict the flight of aircraft over the area to aircraft flown in accordance with specified conditions in the interests of any of the following:
(a) public safety, including the safety of aircraft in flight;
(b) the protection of the environment;
(c) security.
So, if you're trying to reduce the amount of military restricted airspace, I'd suggest you talk to the agency that actually allocates the airspace via the consultation process which is described on the CASA website
Civil Aviation Safety Authority - Consultation rather than via a current affairs show which is simply looking for controversial angle from a positive news story about the search for Australia's last unsolved air crash.