Cathay may market some of the HK Express flights under their own CX flight number, as they planned with the HKG-CXR route, in which case you could book them on a single CX ticket, having luggage allowance included and even earn miles, tier points credit and lounge access if Marco Polo Club member...

Which hotels are THIS cheap?

Apparently Plaza Premium T3 Arrivals just joined Priority Pass

Seems to be rostered to Hong Kong on Jan 8

To be fair, NZ travellers visiting other countries should also have to pay a similar amount in that country. Why should the locals have to fund everything and the kiwis use it for free?