But Ireland can't play that card in Dublin. They can't say little old Ireland stands no chance against the world famous nasty men in black. They can no longer use - positively or negatively - their failure to ever beat the All Blacks as some kind of emotional fuel.
With victory comes a different burden of expectation and while this may be new territory for Ireland, it is the norm for the All Blacks. Their emotional state never changes.
They win a test and they are expected to ramp up to a higher level in the next. They win that next test and the cycle repeats. Lose and it's no different - the expectation is they will respond by playing better.
There is no escaping the culture of continual improvement or shirking the unavoidable truth that the All Blacks haven't played a game in the professional age where they weren't seen as the favourites.
The All Blacks have developed, over more than a century, a resilience to almost everything and their understanding of greatness is built on the need to win all the time, not once.
There is no comfort zone in their world where they can dine off a solitary victory for the rest of their careers - their commitment to excellence is total and it's the reason why they were able to win 18 consecutive tests.
Ireland are now gaining a little peak into that world. It can be a little scary. There is nowhere to hide and the question for them is do they have a desire and mentality to go through what it takes - physically and mentally - to consistently win big games, or are they happy enough to say they made history by beating the All Blacks once and that's enough for them?
If it's the latter then they will need to determine how much they need to evolve tactically and strategically this week. They know, or at least they should, that the All Blacks will be coming at them hard.
They will probably have Brodie Retallick and Sam Whitelock back and a sense of urgency that was missing in the USA. It will be a different All Blacks team by any definition and to beat them, Ireland will have to have new tricks and just as much accuracy and cohesion.
How Ireland and the All Blacks respond in Dublin to their respective fates in Chicago will be where the Lions can gain the most insight into what they face next year.