While it's unfortunate that Australia didn't have a proper system in place before the pandemic, this inquiry will help the commonwealth in the future. To prevent another COVID-like tragedy, the government will need its own CDC to detect, track, and study new diseases and their changing variants. And on the social side of the issue, it must ensure that poor and vulnerable communities aren't disproportionately impacted by public health mandates.
The Australian government has provided no reason for why it should be trusted again. Not only did it impose Orwellian lockdowns on its citizens, but these draconian measures never slowed the spread of COVID. The government has only become more authoritarian with respect to free speech, which shows it cannot be trusted at all to determine what's best for the Australian people. The public has a right to question any future policies proposed by their power hungry leaders.