The three other Rugby Championship nations will be better for these contests, while host nation France and fellow favourites Ireland will be tough opponents. Other teams, such as England, Wales, and Scotland could do better than some expect.
Still, there are reasons for cautious hope that the All Blacks can go far in the tournament.
On Saturday, the All Blacks were able to put a very messy first half - in which Australia dominated the breakdown, territory and possession - behind them and play a lot better in the second 40 minutes.
Tight results where the possibility of defeat is palpable can be more useful to a team than an easy victory.
The team went in with a lot of changes and the structure that had been apparent in previous games was missing in the first half. Head coach Ian Foster said of the first 40: “We were passive defensively”.
There was ill discipline, missed tackles, difficult passes and possession was kicked away.
They were able to reset their mindset and inject the urgency and physicality of earlier tests and show resilience and composure.
Senior stars such as Richie Mo’unga, Dane Coles and Aaron Smith came off the bench and helped nail the result. Key players in the starting side, including Ardie Savea and Sam Whitelock, made influential contributions. The scrum became a weapon and earned the winning penalty. New players started to look more comfortable.
It was an emotional farewell to home tests for some legends nearing the end of their international careers. For younger or new test players, the game should have been helpful. A good blend of experience and inspiration is needed for the World Cup.
The All Blacks have a warm-up game against South Africa in London on August 26 NZT plus pool games against France, Namibia, Italy and Uruguay before a likely quarter-final against Ireland or South Africa.
It’s likely players required for the big games will need to be managed through the schedule. That should leave openings for others to get World Cup test experience.
Hopefully, for some highly promising players on the edge of selection, there will be more chances to prove themselves.