It is usual form that the Nastronauts will try attacking the man, the anonymity furphy, and straw-man argument after they lose the debate based on facts and sound argument. Then they slink off. This will go quiet now (until the next tilt).
Your silence on the pertinent questions, Lead, is deafening.
Your last sweeping 'big-picture' post is instructional. Slavishly applying ICAO-based modeling etc. and disregarding the fact that a higher level of safety is possible (even if not 'required') in Australia for the same spend smacks of either breath-taking stupidity, or a hidden agenda.