A better view is to track total cases that resulted from each breach - the Vic 2nd Wave was 1000s whereas the others have been a handful at best.
Looking at the list it seems Victoria very much "took one for the team", and the whole country learnt from the experience.
Whilst all the noise was about "who made the decision" (to employ private security), with the benefit of hindsight, the genomic tracing linked most cases back to the single family in the Rydges, and a much smaller number to the two outbreaks from the Stamford, the escapes then weren't that much different to subsequent escapes. Just that everyone had learnt a lot from what happened in Vic. Brett Sutton admitted that they didn't pick up on the second wave, because they thought it was the tale end of the first wave, couple that with lack of testing and monitoring of staff, poor PPE practices and the ontact tracing deficiencies we all know what happened.
By contrast here in Singapore, I can't recall a case of hotel quarantine worker contracting the virus, even though there are more passengers (up to 7000 a week) and more positive cases in HQ. There was one documented cluster, proven via genomics of transmission within a hotel. Also several cases of transmission at the airport (including one this week to immigration worker), but not HQ workers. I think there a lot less staff involved, and also maybe given the tropical climate and constant need for cooling, ventilation management much better in most hotels here.