I have a friend who got his PPL at the same time as I did in the US, then spent 3 years working in Melbourne. Th clincher for him in his decision not to fly here was the astonishing news that you needed a clearance to cross a non-active runway at a Class C airport. He would (I expect) be greatly amused that such bizarre restrictions have been extended to airports supposedly less restrictive than Class D!
I think that what has got Dick's back up is CASA trumpeting that NAS is the go, then implementing something that moves further away from the NAS model. Exactly the sort of unjustified and random restrictiveness that has grown like topsy into the system we have today. Some buffoon has used a report as science fiction as the one supporting the NAS claims to implement his personal portion of the Nanny State.