The flights to NZ are very expensive from all airlines, and there are no discounts/offers - like there would be even pre-pandemic.
How long will this last, are they likely to offer any kind of deals? They have tonnes of planes and staff - why not just roster all of them to NZ and offer decent discounts?
Simple demand vs supply. The sudden influx of demand following months of border closures to the only place that now allows international travel… Did you really need to ask this?