Chief galah: One data point does not cut it mate. Unless you can show evidence of overall rates of accidents, fatalities, MAC, or whatever (per passenger/mile, hrs/flown, etc.) which illustrate that the current US system is less safe than the pre- 27 November Australian system, then the point you just made may not tend to persuade people.
Andy
p.s. Blair, Mooney: brace yourselves, as certain ATCs from Melbourne (like WWT) on here won't like it if what you say goes counter to their prejudice... they may call you "fool" and such like.