https://www.health.govt.nz/system/files/documents/pages/revi...
But, listen, if you have better information, I'm all ears. The whole point is to be directed by science, and right now, you're not going to find hard science, i.e., RCTs, to support the prevailing policies.
From the page you link > This advice on use of face masks in the community will be updated if new evidence or guidance from the World Health Organization emerges, or we see a change in COVID-19 disease patterns in New Zealand (for example, increasing community transmission).
So they are simply not advocating masks due to low community transmission.
My main counter claim to the top-level comment is that the messaging is not uniform.
As an example, I've pointed out that policy differs between neighboring areas, and, indeed, policy differs from science.
There is an entire section of the attached material under the heading "Risks and pitfalls." I didn't write it, so forgive me if I'm not too upset that people don't like it.
EDIT: For the record, I'm not angry :)
Tl;dr: When both parties wear marks, both cloth and N95 masks are likely sufficient for mitigating infections in enclosed spaces.