I must say that whilst Qantas has for many years totally ignored the priority boarding promised in their advertising, over the past few weeks they appear to be getting their act together (at least for inter capital flights) at MEL BNE and PER and calling priority PAX first and also in enforcing the priority lanes when there are priority PAX boarding.
It remains to be seen if this will last, or if it will ever be extended to the regional flights from the capitals, or from regional airports (though these are not major concerns to most of us).