Interesting
So NZPP with little scheduled IFR ATO apart from air2there and a small fleet of training aircraft is unsafe without an ATC operation.
NZAP with a full schedule of B1900 operations, the largest skydive operation in the country, helicopter and SE charter base and flight training is "CAA approved safe?"
NZAR the largest GA flight school operation, plus helicopters plus warbird aircraft and ex mil jets. Part 121 DC3 operations plus corporate jet operations is safe with nothing except an airfield charging unit, oops I meant a UNICOM.
Something does not sound right.