My recollection is that a lot of individuals, representative organisations and companies had their say by making submissions to the Aviation Safety Regulatory Review (and, to a lesser extent, the Aviation Accident Investigation inquiry carried out by the Senate Committee). Some very well considered recommendations resulted.
If CASA is unwilling or unable to hear and understand the implications of those recommendations, in the context of circumstances in which they were made, CASA is - indeed - a complete basket case.
The interesting question is how long governments will continue to be willing to pay for what they know is a facade.