I guess my argument is that NSW does not have a high level of community cases - yes, by fortress Australia standards - but considering Doherty models daily cases getting to 60K per day, I don't think we need to throw that modelling out the door - it's not going to be substantially different. According to WA they are going to be updating the modelling - but it's updating, not a completely different scenario.
UK never got back to 30 cases. They opened up at 50K daily cases. Cases dropped.
I think behind closed doors NSW has done its own research as well, specifically a lot with Canada. No doubt there is a lot of information both levels of government aren't sharing with us. NSW seems hell bent on their strategy though, and I support them, the covid zero strategy is just ludicrous at this point.