NZ looks to me to have a lower death rate than Australia. See [0].
I haven't done a deep dive of the literature but from what I understand wearing face masks is pretty well established to correlate with lower infection rates. A Google search gives [1] which seems pretty reputable to me.
It sounds like you're picking a fight about your personal cause celebre? The original article is talking about trying to figure out how to build evidence. The underlying assumption is that once you have evidence, you use it to inform decisions. You're pushing a false narrative by not only ignoring evidence but also misinterpreting or lying about the evidence that's available.
[0] https://aatishb.com/covidtrends/?data=deaths&location=Austra...
[1] https://www.publichealthontario.ca/-/media/Documents/nCoV/CO...