You can't put Melbourne in the same bracket as those other tracks? Turn 1, turn 3 and the corner after the high speed chicane are all better overtaking opportunities than anywhere at those other three circuits apart from perhaps Barcelona turn 1 and Singapore turn 7.
Baku, Shanghai, even Spa and Monza have straights where you generally see one car cruise past another with DRS which I don't personally class as overtaking, just one car driving past another. COTA has one long straight like that but generally is one of the new circuits that makes for some decent wheel to wheel action.
If you look through the archives at Melbourne you'll find a lot more "classic" races than you would at most other venues that have been around a similar amount of time such as Hungaroring, Barcelona, Kuala Lumpur. Granted many of these are due to the nature of the first race of the season being more susceptible to drama and people making mistakes.