Second, is a sense that without wishing to demean the Wallabies, they could be the weakest team in the Rugby Championship.
The test in Hamilton will be relentlessly physical and at times brutal in a way the games against Australia never were and that's the point in all of this - can the All Blacks play high tempo, continuity rugby against sides that are purpose-built to prevent that from happening?
"In selecting this team, we felt there was the need for consistency," says All Blacks coach Steve Hansen.
"The squad is five games into re-establishing themselves on the international stage and we felt that it would not be right to make a lot of changes."
The Pumas can't match the Wallabies in regard to world-class players, but they do pose significantly more attacking threats on account of their greater physical offering.
Their scrum, based on the way it performed against the Springboks last week, remains one of the best and most powerful in the world game.
Their lineout is far from the shambolic mess that Australia produced and not only can they win usable ball off the top, they can set one of the more dynamic and difficult to stop driving mauls.
They defend with a touch of cunning and venom. No8 Facundo Isa showed how much with his last minute destruction of Springbok lock Pieter-Steph du Toit.
And in the collision areas around the tackled ball, they are persistently cussed in the way they are able to put bodies in places that make it hard for teams to win quick ruck ball.
The Wallabies didn't seem to have that capacity to dominate the All Blacks physically but the Pumas do.
They will also force the All Blacks to reconsider the risk-reward equation when it comes to lineouts. Against the Wallabies, the All Blacks were happy to challenge virtually every Australian throw.
They were able to steal a total of eight lineouts across the series and prevent the Wallabies from launching any memorable lineout drives or effective backs moves.
The All Blacks appear to be on the right track but judging just how far down it they are will have to wait until they have encountered first the Pumas and then the Springboks.
The matchday 23 is (with Test caps in brackets):
1. Joe Moody (15)
2. Dane Coles (41)
3. Owen Franks (82)
4. Brodie Retallick (52)
5. Samuel Whitelock (77)
6. Jerome Kaino (71)
7. Sam Cane (36)
8. Kieran Read - captain (89)
9. Aaron Smith (52)
10. Beauden Barrett (41)
11. Julian Savea (45)
12. Ryan Crotty (19)
13. Malakai Fekitoa (17)
14. Israel Dagg (53)
15. Ben Smith (53)
16. Codie Taylor (5)
17. Wyatt Crockett (50)
18. Charlie Faumuina (38)
19. Luke Romano (24)
20. Ardie Savea (4)
21. TJ Perenara (21)
22. Aaron Cruden (41)
23. Anton Lienert-Brown (1)