Originally Posted by Midnight
As you have indicated, responsibility for determining what class of airspace and level of service to be provided in any area rests with CASA OAR, not Airservices. OAR initiate aeronautical studies of locations, airspace and ATC groups for this reason.
Perhaps Airservices should simply sit back and continue to provide the services they already do - and by all means continue to institute efficiency improvements in their operations and organisation - and wait for CASA OAR to direct them to implement airspace and service level changes where they - CASA OAR - deem necessary.