Care to substantiate your comments about ATC being generally poor and unpredictable compared to.... The rest of the world?
Unannounced holding; speed up slow down; min speed in the cruise to 10000' followed by track shortening and keep your speed up for as long a possible; excessive separation limitations, no speed control to speak of, 20 to run that ends up being 35, traffic holding on a quiet blue skies Saturday Afternoon......
If you look at what goes on in Europe and the USA Australia is a joke. Now they handle all their traffic through weather that we don't even get in Australia. We should have one the best countries in the world to fly in. Great weather, Massive land area and low density of traffic. Instead we have to many stupid rules and regulations and not enough smart rules and very little infrastructure which just increases the stress levels for all involved.
The fact that legally this flight could have planned to land at Perth with fixed reserve should make us question what we are doing.