Lookleft it is based on the British CAAP and works well. It is, and has been, the only airline FRMS operating in Australia for some time (since 2007) and bears no relationship to cao48 or the standard industry exemption.
The person running jetstar's FRMS who came from Virgin is excellent and very knowledgable but can only do so much.
Being knocked back by casa isn't an indication of the efficacy of a FRMS, merely an indication that casa don't know what they want.
Faid was the only tool available for some time. They are transitioning to FAST as we speak