If only our interstate politicians realised that once they exit immigration in Sydney the NZ'ers arriving under the bubble are effectively people in NSW. As long as the same controls apply as anyone who has been in NSW in the previous 14 days, then I'm not sure what the issue is, especially for states that have quarantine arrangements for people arriving from NSW. All that it means, is these people only have to go through 1x quarantine rather than 2!
And people seriously think that travel will be opened up in 2021! With this much fuss about a few dozen people coming from a country with 0 community cases and excellent response when they do get a case, what hope is there to ever open up to anywhere, even like Singapore or Hong Kong with very low levels in the community, let alone Europe or the US, even with a 90% effective vaccine?