What constitutes a transient visitor compared to someone who lives there? I don't know what I will be doing and where I will be in a year. Never have. Does that mean I shouldn't be allowed buy property anywhere?
NZ citizens aren't under any obligation to put your interests before those of their fellow citizens. It would be generous for them to consider you, and generosity is good, all things being equal (and NZ has an admirable record as a generous polity). But the side-effect in this case it to allow poor New Zealanders to be predated on by the global rich. They have clearly decided to attempt to prevent this predation.
The best balance of policies to deal with fair & equitable housing supply has been the subject of vast tonnages of reports and research over many decades. It's hardly going to be resolved in a comments page.
That's a different topic from what I was commenting on, ie. NZ's putative duty to write its laws for your lifestyle convenience.
Clearly hardly any governments have read or paid attention to the "vast tonnages of reports and research over many decades" relating to fair & equitable housing supply or they wouldn't be resorting to the level of populist BS that is prevalent in the world today.
You have not provided any further details on why this is better.
And you mention living a transient lifestyle. Please tell me more about the property you own in Singapore then, because i'm sure you're happy paying a double digit percentage stamp duty in a not entirely stable market for 1-2 years of living here.