Ziggy
The only glimmer of hope for any substantive change is the non-major party aligned Senators. If you want to put your energy to most effective use, lobby them.
CASA as an organisation doesn't care. Protesting at their gab-fests will make no difference.
ATSB as an organisation doesn't care. Protesting at their gab-fests will make no difference.
Almost none, if any, of the chest-beaters on pprune will be there with you.
The Laborials as a group don't care. The Laborials as a group are very happy with the job CASA and ATSB do. Nothing that CASA and ATSB have done or not done has made an iota of difference to the opinion polls. That's why nothing substantive has happened in the wake of the Senate Aviation Accident Investigation Inquiry report or the ASRR Panel report.
The only glimmer of hope is that the non-majory party aligned Senators can be convinced to do something. Talk to the PUPs, the Lib Dem, the Family First as well as Nick X and the Greens.