The talk about major Ute sales in Oz has to be measured against Our love of diesel power.
The Hilux Diesel remains top seller, ( also in our 'grey' export market
).
Even though the Nissan Navara diesel was/is an unreliable pile of crap, Ozzie tradies buy millions of them.
The reporters seem to conflate Mazda Bt50 and Ford Ranger. Essentially the same vehicle, although the Ford with the 5 cylinder diesel seems most popular with a pretty good rap.
The tough Hilux will be hard to beat, even at a lower price.