I'm with Thornbird.
CASA's approach to IFR ratings costs lives.
Since GPS and the ability to "follow the magenta line" IFR ratings should be materially easier. There's no need for NDB, VOR or DME approaches. ILS is not really needed (we hardly have any that are accessible to GA). The theory should be a shadow of what IREX was. The only reason I can see for the gap between the proportion of pilots with instrument ratings in the US compared with Australia is bloody minded bureaucracy. And we should call out that it costs lives.