First up RAAus are only reading THEIR room, not ours? GA may well move to MOSAIC in the US because there is more money there, than there is here?
Let me say that CASA are not interested at all in MOSAIC, simply because they don’t have the staffing level and budget, to create the platform for it in Australia.
CASA is currently behind on many of its projects that should have long been finalised?
I don’t see them taking on anything extra in the way of workload especially what MOSAIC would present?
Consider for access to controlled airspace is going to require TSO spec instruments, and appropriate endorsements, which I do not know if there is even a manual for that endorsement training by RAAus?
RAAus have a lot of things to work on, including their new Online examination system for student pilots, like everything it will probably have some bugs to iron out which is understandable but all this, takes time.