I'm not saying you cant have an opinion- quite the opposite. I'm trying to find out what you think is wrong with the current australian system.
I personally think, there needs to better ingress/egress routes into controlled airspace from the uncontrolled aerodromes, to give better protection to the IFR flights.
Protection from what? From other IFRs. From VFRs? From CFIT? Where is the problem that needs fixing? Is it just an opinion? Do you think the introduction of half of the "US system" will address this 'problem' (which is the actual topic of the thread)?
Your last post indicates that the introduction of E at Williamtown is the problem. Perhaps the problems arise when complexity is increased trying to pander to Dick's dreams.
I certainly agree that there are more important matters to address before ANY effort is wasted on NAS.