No similar event has occurred in New Zealand before.
Guns are not readily available in New Zealand. You can get one suitable for sport, but it is a serious process to get your license first. I presume these guns must have been illegally imported from somewhere.
I think New Zealanders are mostly reasonably liberal, even laid-back, although we do have our share of "rednecks" too.
Size, geography, and population of NZ is somewhat similar to Oregon.
Generally our government is reasonably well run and the less fortunate get some care: I suspect because the families and friends of our politicians have varied backgrounds (it is difficult for politicians to live in an elite bubble).
Generally we don't like being told what to do by our government, or anyone from overseas.
Personal opinion:
I am from Christchurch, and I think censorship is dangerous, but there needs to be some way to prevent the easy access to forums and videos of violence, hatred, and abuse.
I don't want my friends, or their family watching this mentally damaging video. I know friends and the children of friends that have watched the livestreamed video, because it is easily available.
This block is unprecedented here, and has little legal or technical infrastructure in place to enforce it.
NZ will sort our shit out about this, hopefully without too much interference from the societies that caused this atrocity in the first place.