Aus and NZ will the last to add anything to airports like rapid testing etc. Airports around the world have been preparing to operate safely for staff and passengers but the Tasman airports will just wait and do nothing different to what they were doing before Covid.
Remember Australian airports where just handing out a flyer to arrivals in March which basically did nothing, and they were getting people to queue with no social distancing. Even now there are queues at domestic security because they don't want to pay more staff.
Border Force or whoever is responsible for this type of thing will just sit on their hands while the rest of the world is open. Even the cruise lines have implemented plans and rapid testing before boarding and during the cruise- they are ready to operate safely but ScoMo doesn't want the risk of another Ruby Princess