Well, stepupandbecounted, UK has decided its actions, and accepted its consequences, and NZ is perfectly entitled to do the same.
I'm sure we have very different opinions as to who has got it right, but ultimately, both countries have a leadership (that is not you or I) that has made its determinations according to its priorities and resources, as it is entitled to do, and people are entitled to accept and embrace it, if they feel it's the right thing to do, or to vote them the fuck out at the next election. Interestingly enough, NZ has been through a national election under MMP since the pandemic became an issue. Labour got a majority vote, a landslide victory, the first time since MMP was introduced.
Were you eligible to vote? Do you think, if not, that your voice and opinions, from afar, should carry more weight than those that have lived the NZ experience of the Pandemic, who pay the taxes that carry the social welfare system and healthcare system?
I assure you, the average Kiwi is no dumber than the average Brit.
We possibly just have different expectations from our elected politicians, different experiences, and different priorities.