Heavily dislike in raw form but could be workable with tweaks. Reason for disliking is that is that for some people, they can’t get citizenship without renouncing their birth citizenship while other countries allow for dual citizenship. This creates an incentive to get NZ citizenship (over residency) which may not be the best option. For example, a woman from a country that does NOT
allow dual citizenship is faced with a stark choice. Maintain her birth citizenship and be penalised by this proposal or adopt NZ Citizenship. This second option potentially strands her if she discovers that her partner is abusive (especially if that develops over time). Essentially this disadvantages those from countries that don’t allow dual citizenship, rather an arbitrary division. The tweak would be to have something like citizenship lite (see blue card: https://en.m.wikipedia.org/wiki/Turkish_nationality_law
) that allowed for those from countries that did not allow dual citizenship a way to have equivalent protections to those that did.
Another issue is that in the case of a couple undergoing a divorce, the non resident spouse would be at a disadvantage, again only in the case where dual citizenship was not an option.
Or, the limitation could be for non-residents.