Regulatory barriers aside, the core issue is that globalisation initiatives keep running into the same old, rigid doctrine cobbled together in an era of parochial labour relations.
Global initiatives by their very nature are tricky. They have to be pitched to foreign affiliates and considered in good faith by Australian Legislators, Regulators, Management & Unions.
All of which is unlikely to bear fruit unless management and labour are in it together. More of the same old same old will only get us sidelined and take aviation the same way shipping has gone.