While some people in the region may know that 'Ahuriri' is the Maori name for Napier, I would wager that very few outside the Bay would.
The proposal to rebrand Hawke's Bay Airport to Ahuriri Airport Hawke's Bay makes no sense from a business or a branding perspective, and should be dropped.
There can be reasons to rebrand a product or service, but the underlying rationale is nearly always to build, enhance, regain, or recreate equity that has been lost in the old brand. Perhaps one of the most famous examples is when Steve Jobs returned to Apple in 1997, he rebranded the company from Apple Computer to Apple so the company would have customer permission to sell other products, such as the iPod, iPhone, iWatch etc. Now Apple is the most valuable company in the world.
Whatever the reason for a rebranding decision, to be successful the new brand must resonate with its customers and therefore create value over and above that which existed beforehand. This is why I find it absurd that the directors and shareholders of our regional airport have decided to rebrand Hawke's Bay Airport to Ahuriri Airport Hawke's Bay. The Hawke's Bay brand is not damaged; in fact quite the contrary -- a significant amount of money has been poured into enhancing the Bay brand both domestically and internationally, and it is recognised by the air-travelling public.
In fact, this proposal may backfire in the sense that it could well create confusion. As it is, our airport is the only domestic one on the Air NZ website that has two separate brands: "Hawke's Bay" (the official name of the airport) and "Napier/Hastings" (the destinations that most people booking want to arrive at and the cities the terminal serves).