It is a shame then that you have squandered such a huge amount of time by only vaccinating a mere 19% of the population - what a terrible outcome when so many countries have nearly finished, and are now moving on to the next booster vaccine.
Why aren't you more angry about that lost opportunity? Just asking, I am not suggesting you should be angry or demand better, but I do find it is so intriguing that you are happy to sit in any kind of lockdown, and put up with your borders being closed for so long, potentially indefinitely when a perfectly good vaccine has been available now for a solid 14 months!!! With such a tiny population to cover, you should have been among the first to be finished, and completed the programme months ago effortlessly, and enjoying a normal carefree vaccinated life now.
Okay, so this time your straw man is an imaginary perfect outcome? (Leaving aside the absolute nonsense that everyone in the UK is currently enjoying a "normal carefree life" RN.) The reason we're not outraged is because we do understand shades of grey, and that reality is a series of trade-offs. In a crisis there is no magical way to achieve a perfect outcome, you go for the best outcome you can reasonably achieve.
In a pandemic, you can have high herd immunity through infection, but you're going to pay for that with a massive death rate. You can have a short, very hard lockdown and then complete freedom, or you can have a long, softer lockdown dragged on for months.
You can have locked borders and minimal virus incursion or open borders and substantial virus incursion. You can have priority in the vaccine programme, but the government will have to pay up to be at the absolute front of the queue (high population helps here) or you'll have to have the virus causing havoc so that you become an ethical priority or both. Or you have live a virus-free existence but you'll have to wait for the vaccines a bit longer.
The reason we're not outraged is because the NZ government is playing chess. Yup. There are realistic trade-offs. But we think they are GREAT tradeoffs given the alternatives.
Come back at Christmas when New Zealand has a higher percentage of population immunized than the UK and still less than a thousandth of the deaths, and we'll have this conversation about trade-offs again.