If I may weigh into this debate at such a late change, Chris Higgins, I think the problem with Australians accepting new airspace laws or airspace reform is that there is a component of the Australian psyche that is resistand to change, and it doesn't just occur in Aviation, it happens to all facets of Australian culture. You just have to look at the track record of referendums in Australia. I know this is a generaisation, so don't shoot me down in flames, but Australians as a whole, are resistant to change of any sort. Its a case of "It works well enough now, so why change it?" even if the change could be for the better.
Just my 2 cents anyway.