No, they're not describing New Zealand. NZ doesn't have a national ID card. Also, they have their own system for SSO to government portals that doesn't use Google.
Most WINZ/StudyLink and IRD interactions are online now, and I got my passport 100% online using RealMe. I can't remember the last time I posted anything to government in NZ.
I've had a ton of paperwork done in recent years (voting, child passport, visas). Most of the conveniences stops when you don't have NZ's drivers licence...