The only false statement in this case was not checking "traveled to other countries in last 14 days". And it was filled in by an agent. Now, we can say that it

The only false statement in this case was not checking "traveled to other countries in last 14 days". And it was filled in by an agent. Now, we can say that it is a ground for visa cancelation, but I'm sure if you've analyzed all paperwork for all other tennis players now in Australia you'd find similar issues, especially since many of them were also filled by agents. AFAIK questions about medical exemptions or PCR tests were correctly filled according to rules communicated to him. We can speculate whether PCR test was real or fake, but these were not legaly disputed in two legal processes and are thus not "false statements on a visa application". Let's not kid ourselves. In Djokovic's case filling out this single field incorectly was certainly not the reason why he was deported.