Looks like someone in government has called them out:
MINISTER SAYS QANTAS’ STATE BIDDING WAR ‘WORST OF FEDERALISM’
“This has the potential to represent the worst of federalism and spark a wave of corporate welfare-seeking by big business if we have big companies just auctioning off their head offices to states and territories,” Birmingham said. “In the end, it’s taxpayers picking up the bill.”
Minister Birmingham said, “I’d have to urge caution from the states. This bidding war won’t create one extra job in Australia; it just shuffles jobs around Australia