JB is a fine manager but the board made a choice to go with AJ. And they are sticking with it.
QF needs a drastic overhaul and AJ is just the guy to do it. And whether you like it or not, the business community in Oz loves him.
The unions thought they could pull their usual tactics but failed. And now cannot deal with the fact that they are unable to hold QF hostage to get their demands met. Thus the conspiracy theories, the moaning about management, the building at Mascot and whatever else comes to mind.
When things are going well the union mentality is "I show up to work so I should get a bonus." When things are not going well they are not willing to sacrifice.