Tipsy. The problem is that the Governments decision to go to the North American airspace system with some minor Aussie changes was halted and now it is half wound back to our previous pre AMATS 1990s system.
In attempting to get that to work CASA people have come up with the decision that North American CTAFs won't work in Aus at un marked aerodromes.
This has been driven by the wind back decision to put the frequency boundaries back on the charts. If you remember the NAS document said on page 8
"" A major change is that some area frequencies and ALL FREQUECY BOUNDARY INFORMATION has been removed from the charts""
Once that's wind back happened we really needed to put back the separate Flight Service system with its 700 staff so VFR calls were not on frequencies that are also used for ATC separation purposes.
The cost would be staggering and do even further damage to GA.
CASA simply ignore the RAPACs and I must admit that there is still some RAPAC members who want to keep the half wound back system. As there is zero leadership at CASA re Airspace they try and appease some where they can.