Dick,
One of my points, several posts ago, was that CASA was stampeded into a bad decision by the inordinate pressure that is applied from without.
Secondly, I agree your contention that things could be improved - they always can be. But, if the following holds true:
Personally, I believe airports such as Bankstown have some of the safest procedures that I have experienced in the world.
;
then maybe the solution is to seek a decent fix that involves fine-tuning (with no appreciable costs to industry) rather than wholesale change (with associated costs to industry).