Thanks for your comment. Some more thoughts:

Studies show that there are somewhere in the range of 5 to 20 unidentified covid-19 cases per ID'd case. If asymptomatic spread is a thing, it isn't logical to conclude that the virus was contained using localized lockdowns, especially after the virus spread freely for over half a year (it's alleged to be incredibly infectious).

For example in China, they first reacted to the virus months after it had been spreading across the world (antibodies in Italian blood samples in September, widespread across US in mid-December). How did the hard lockdown in Wuhan actually contain a virus that must have been spread throughout the country?

Similarly, NZ and Australia may have experienced a widespread introduction of the virus before even becoming aware of it. Independent of NPI, populations across Asia and Australasia seem to be far less affected by the illness. It's entirely plausible that it could have worked its way through large swaths of those populations. It will be interesting to see how this plays out.

This chart is very telling:

https://twitter.com/NightWatchman21/status/1357075788818956288?s=20