DTN,
From experience, some of the decisions/ recommendations coming out of the new-look rercruiting system, ie mostly civilian are laughable, particularly with regard to what they recommend people go and do. I would push ahead with the RAAF option if that's what you want- Does it say in black and white that 33 is to old???? if not, they're doing what recruiters do best, ie trying to fill slots in other areas.
There's always the navy.......
Good luck, pm me if you need any help
Oldpinger