Had those two 737s crashed at Mildura, you can bet Australia's capital cities would all now have cat 3. It was just a miracle they both landed safely.
This is how we do business in Australia - ignore a known problem until something big goes wrong, conduct an inquiry at huge expense, everyone scurries to the cracks like cockroaches in the hope of avoiding any liability, report gets released, then we implement a cheap, half arsed, slow solution - not to fix the problem, but to avoid future liability if it happens again.
This (no expenditure in safety infrastructure) is what happens when you privatise airports. Reap/sow.