If that were true, why has New Zealand failed to stop COVID? They're a couple of islands surrounded by over a thousand miles of ocean between them and neighbor

If that were true, why has New Zealand failed to stop COVID? They're a couple of islands surrounded by over a thousand miles of ocean between them and neighboring countries, they did lockdowns and achieved over 90% vaccine compliance, and after all this time they recently admitted that they no longer believed they could stop the virus. https://www.yahoo.com/news/zealand-once-paragon-covid-zero-060801532.html https://www.yahoo.com/news/zealand-once-paragon-covid-zero-0... Don't forget that, yes, a certain percentage of that remaining 10% have either natural immunity or aren't going to experience symptoms. I'm pretty skeptical at this point that any doubling-down is going to lead to anything but more doubling-down.