That makes this an area where competition between search engines matters, even if what link targets want doesn't matter at all.
It's entirely possible that Google's internal position was "this is a tax on search engines, and the higher the taxes on search engines are, the better for us".
The AU government then specifically included search in the act's explanatory memorandum. Google then threatened to ban search from Australia.
In response to Google threat, the government and Google talked. After the talks, Google withdrew it's threat. The Government claimed Google backed down.
Now we read search is excluded. [1]
How do you know a politician is lying: his lips are moving.
[0] https://www.nytimes.com/2021/02/17/business/media/australia-...
[1] https://theconversation.com/this-weeks-changes-are-a-win-for...