That's actually the whole point, ichkeria - Australia very much *has* been refusing to admit its own citizens for most of the last two years - even now they still need to be vaccinated to get back in - exemptions are very few and very hard to get.
Novax (and/or his lawyers) are lying through their teeth about the 16th December test - provided retrospectively by a subSerbian Government and about as kosher as a lorry load of pork chops.
Just look at him in all the photos of 16th/17th/18th December - at official functions and mixing with young people, big grin on his unmasked face - no the actions of someone who'd just tested positive for Covid.