I would guess that the union-bosses strategy is to plan a multi-session, media orchestrated destruction of Tony Abbott in a similar style to the media destruction of John Howard in the disgraceful Rudd 2007 "me-too" campaign...
Loaded audiences of leftist goons howling their hatred of Tony Abbott, sneering and groaning continually at his every utterence and remember the "worm" supposedly reflecting audience opinion that took a massive nose-dive every time the camera focussed on John Howard or he took a breath to start to answer a question...
I suspect that this the last-ditch strategy of desperation that the union-bosses are pinning their hopes to...