I gathered up this playlist of NZ music on Spotify if anyone's interested: New Zealand Experimental, Gothic and Weird. I enjoy the lot as it's hard to go wrong with weird stuff, dark electro-industrial and so on as it's all so varied and interesting.
If the entire album was in the vein of this song (actually, it's more some kind of soundscape with spoken words), I would have included it in my non-metal list for 1990.