Rat,
Good posts you are providing. Thanks.
Now I'm a little slow, so please be gentle on me. I'm not very good at picking up hidden agendas etc, so might be missing something.
I'm not sure what all the kerfuffle is about the Willy airspace. It seems that if one wants to transit coastal, you need (according to the AIP) to get a clearance and have enough fuel for 30 mins of holding.
A flight plan should be submitted to reduce delays.
Talk to ATC and get a clearance, or hold.
If this doesn't suit you, VFR can track via Maitland/Dugong (inland) without clearance.
As RatsoreA has pointed out, the MDX accident had very little to o with ATC issues, and more to do with pilot choices.
So what is the big deal about Willy airspace? Have fuel to hold, or go inland?
Am I missing something?