Guess you missed the part in your article where the author points to Aussies as being 100 years behind everyone else in food culture.
When I was growing up dinner almost always was soup/salad/antipasta then the main course which was actually a combination of several course served all at once.
At my Italian Grandparents they served two-three courses for the Sunday meal.
At my Mexican Grandparents they served two but were comprised of several all at once on the table for the Sunday meal.
Not including dessert at both houses so add another one.