You would like to think so, but ScoMo can't even get our premier's to open their state borders, what are the chances he'll have the balls, yet alone the integrity to do something like that? You've got a better chance of winning lotto
You can't ban an airline for following the law in their own country. ScoMo has zero ability to do anything even if he wanted to. Once you play at a Sovereign State level there are no real rules to speak of.
Look at the Uyghur situation or the recognition of Taiwan. I'm sure the Australian government doesn't agree with any of it but what can they do about it? Ban China Southern?
The only option is for Australian citizens to never fly with an airline if they don't agree.