I don't think "deep cleaning" the wrong Woolworths is the issue.They identified and deep cleaned the wrong woolworths when the first case was identified. says quite a bit about our contact tracing.
Testing and isolating the staff and shoppers from the wrong Woolworths is more of a problem. Most shoppers probably wouldn't have tested and isolated, the staff I assume would have been mandated to.
I find it peculiar that the error was noted on Friday, and this latest outbreak started almost immediately afterwards. I wonder what made the contract tracers double check the exposure sites almost two weeks after they were issued?