sbiddle: I think you're ignoring the key part of the AZ issue - Bloomfield stood there at 1pm and said that AZ was not going to be available to anybody and there would be very strict criteria. You either needed to be one of the few hundred people unable to get Pfizer due to medical conditions, or you needed to be an essential worker in a role where a vaccine mandate existed. By 5pm Hipkins said it would be available anybody in NZ for whatever reason who didn't want Pfizer after a consultation with a medical expert to discuss the pros and cons. They are pretty much doing what you've suggested above.
This is a difference in perspective and not a difference in effect. I'm not at all ignoring it. In fact, Hipkins could well be wrong in the present moment if the logistics are still in development.