Midnight:
Have heard a rumour CASA may not support this recommendation, though why staff in their airspace regulation office in CBR would be involved in the designation of air routes and short term designations of temporary restricted areas I don't know.
Why should CASA be involved? Simple really, because it creates jobs for CASA staff and management positions for CASA managers.
That includes:
Executive Manager
Airspace and Aerodrome Regulation Division
I would have thought however that according to the aerodrome owners, such staff could be better used visiting aerodromes on a regular basis.