The only way forward from this is that the operator mandates far more operational requirements in operating to an airport (Non regulatory).
Destinations should carry an alternate with precision approach that requires generous viz and cloud ceiling forecasts. The reality is that some of those airports may be several hundred miles away, most international airlines operate this way. Oz airlines need to step back from the regulatory minimums and start carrying more fuel.
The cutbacks in the BOM and unreliable weather updates from operational staff will lead to another disaster. It is through sheer luck they haven't had and airliner off a runaway or floating in the sea.
CASA will regulate to to a minimum that doesn't upset QF, other airlines should work above that.