Makes sense & with no curfew at CBR that could operate red-eyes out of CBR. Not sure what time the last SYD/AKL operates in the eveing but it must be around 1800, which means check in at 1600 & leave whatever (business meeting etc.) by 1400, which stuffs up the day. A short hop SYD/CBR or BWU/CBR to connect to AKL flight departing at 2359 would have you arriving in AKL early but not in the dark !!!
Would people really want to take a red-eye service to AKL? JQ is the only one that currently goes on MEL-AKL which gets around 5am, they constantly have this flight on sale.
Last NZ flight from SYD is NZ108 at 1840 with an 2340 arrival in AKL.