Not wrong. Read about how this quarantine breach here in Perth was handled. Total confusion, nobody knew what they were meant to do.

https://www.abc.net.au/news/2020-08-29/coronavirus-breach-at-northbridge-hotel/12608998

If the average person isn't informed about the basics of this virus, it makes infection control very difficult.

For example, there's no point being tested directly after possible exposure, as those people were told. It won't be detected that quickly. You need to isolate for about 5 days, then get tested.

But nobody knows that, so they get tested right away, it's negative, then they go and spread it.

The level of public eduction about this is terribly basic.