Originally Posted by
HFHFFlyer
This is quite inaccurate. I am personally aware of one US citizen and one German citizen who have been granted entry for emergency reasons, as well as two UK citizens who are permanent residents being admitted.
Australian permanent residents have always been allowed to (re)enter.
And a few others by exemption
AU Gov links
https://covid19.homeaffairs.gov.au/
https://covid19.homeaffairs.gov.au/coming-australia
https://covid19.homeaffairs.gov.au/travel-restrictions