Don't know what is going on exactly but re GA I have concerns re future recurring issues with some GA ( esp training ) aircraft having some bad slow speed habits ref Bristel, Aquila, Liberty, Diamond and many others that look o so sexy and glossy but are not up to slow speed safety. I mean, some of these AC when slow flip a wing down, then the nose down before you can blink and then if you are low, goodnight. The reports are out there.
Contrast this with the Jabiru that CASA tried to force off the map, which has full control authority thru the stall. I think C172s etc also are relatively safe.
I think CASA should spend more of their resources talking to prospective flying schools re suitable aircraft.