One's behind a paywall, the other doesn't mention those particular cases.
Of course there are other cases.
Fly alone into NZ, apply for a work visa once you've arrived because you've been offered a job that may eventually lead to meeting residency, there's no guarantee and it's very unlikely your partner will be offered a visa.
Immigration consultants make promises (which may be pro-bono) to "work around" the laws we have - and of course that can impact hopeful immigrants lives.