Action would in civil arena and therefore would have to name offenders as defenants - in common with J*. Sadly this action would not go far as the ticket T&C's preclude any remedy and unless there is a conviction against the offenders then it's (another) flight to nowhere!
Even if it did get up against the offenders they probably have no money or assets and you would have to fund the action with little prospects of being awarded costs ....
...best bet would be to take Westy up on his very gracious and ill advised duty of care quote and settle for nothing less than a freebie or a starclass upgrade.........if the negotiation gets hard - offer to erase the video of the incident on your phone or alternatively threaten to email it to Today tonight.
As for the bogan-class offenders....well that's why God gave us buses trains and cruise ships.