His view is perhaps commonly held within CASA. Another CASA manager, Keith Thompson, basically told me exactly the same thing in 2016-17.
A great many of his points are perfectly valid; however, he ignores the fact that
1/. GA serves regional communities in ways that bigger operators won't (without subsidies); and
2/. A strong GA industry is a desirable thing; and
3/. the government, through policy and effective sensible regulation, is in a position to facilitate a strong, safe and growing GA industry.
The fact that despite many enquiries and delegations and much lobbying they refuse to do anything leads me to conclude that is is a deliberate strategy on the part of Government.