The first Atto 3s were delivered from September 2022 (
BYD delivers first customer cars in Australia), and Tesla only started opening up the Supercharger network in January 2023 (
Select Tesla Superchargers open for all electric cars in Australia), all of which were V2 units.
It wasn't until August 2023 that a bunch more Supercharger sites - including V3 sites - were opened to Non-Tesla EVs,
Tesla opens 30 Superchargers to rival electric cars in Australia At which point the Atto 3 had been on the road for a year.
Even the Seal was here in ~November last year -
First customer BYD Seals come ashore in Australia
So probably not possible to do the testing in time?
(Though mind you, the Atto 3 has been available in Germany since October 2022, the UK in March 2023.... where some Superchargers have been open since ~June 2022, so yes, you'd think they had tested it on the V3 units in Europe first!
Select Superchargers open for others in the EU - electrive.com)