It would be best not to make the age-old mistake of reading much into Rugby Championship results in respect of what they might mean at the World Cup.
The All Blacks in particular have a sad and painful record of looking a million dollars before the tournament only to then be well beaten at the World Cup by the same teams they were dominating.
There is no better example of that than 2007. In June, the All Blacks posted record wins against France. In October, France knocked them out in the World Cup quarter-finals.
In 2003, the All Blacks scored 50 points against the Wallabies in Sydney. On the same ground in November, the Wallabies were really the only team in the semifinal. The All Blacks, emphatic and deadly when it didn't matter so much, were tentative and careless when it did.
As further proof pre-tournament form isn't much of a guide, the Wallabies were crowned Tri Nations champions in 2011 after they beat the All Blacks in Brisbane. At Suncorp Stadium, the Wallabies were more physical, better organised and more clinical. They won well and looked a serious threat. But seven weeks later at Eden Park, the All Blacks blew them off the park physically and were sharper, faster and hungrier.