This is standard Australian pork-barrelling.

This is a private school in an affluent demographic (mostly, there's some indigenous children there), who organised a queue jump for their kids on getting the Pfizer vaccine.

The government complied, and are using "oops" as the reason that these privileged kids get their immunity while everyone else has to wait.

The Australian government is at the moment is very pro-rich, anti-poor. The prime minister is a member of one of those "prosperity gospel" churches where being poor is a sin and being rich is indicative of God's support and blessing. (Exactly unlike the teaching of Jesus).