How do you think CFMEU brings Grocon to the table? Sweet reason? The only thing that will get you anywhere is to credibly threaten Qantas profitability.
Since politicians on both sides of Parliament vie with each other to see how far they canclimb up the Qantas arse, you have very little hope. Then of course the Greens hate all airlines so they are no help.
You need to strike and make it stick and bugger FWA.