A clear example of this was the extreme shortage of pilots 2 years ago yet there was no significant increase in terms and conditions. Why? Because experienced captains could not enter airlines at the command level - rather join at the bottom. Think about it.
No. Airlines seemed happy to cancel flights and contract their businesses in a time of massive expansion rather than pay more money to retain pilots. REX also tried to get 457 visas but discovered that they were paying below the minimum salary to qualify!!
That's what really happened.
Over in WA the same would have happened except that I think the mining companies who have had the gun held to their heads in terms of salaries may put some subtle pressure on the charter operators to start paying some decent coin.
What we also saw was a ridiculous reduction of the minimum requirements that were once apparently written in stone.