But that is the logic that has been applied to Daniel Andrews for the last 194 pages.
Why would you want to change it in this case?
From a discussion with those in both events there is a difference. In the Victorian quarantine case, the securing/security of the hotels was contracted out to private operator who were expected to know what to do; that is minimal direction from the relevant authority.
In the case here in Queensland, the contract with the provider did state the requirements and the contractor agreed that they would be met and their staff were qualified. In the end it was basically a case of negligence on the part of the administering doctor. A friend who has been administering the vaccine indicated that it would be arguably incompetent to have administered all four doses from one vial, even if he'd had no more than his normal qualifications. As she said, if he'd followed his normal procedure it would not have happened. A failure to follow SOPs I guess.