Asked about the All Blacks lethal finished from open play, but also from the set piece, Barrett would offer only: "It is great to see those moves you prepare for come off. It's about doing the basics well and playing what's in front of you. I don't think we were as clinical as we need to be. It's only a start and we can certainly get better."
A suggestion that the midfield of Sonny Bill Williams and Anton Lienert-Brown performed well despite not having played a test together was met with: "I thought they complement each other well. It's a start for them, I'm sure they want to improve together as a combination."
All of which is an indication of the All Blacks' constant search for perfection, a goal which they know they won't achieve but one which will make them better, and that's a modus operandi which has secured them successive World Cup victories and a remarkable winning record.
There will be satisfaction that there weren't too many signs of rust but a knowledge too that the Lions will offer many different challenges, especially up front and on defence, than Manu Samoa did.
Barrett knows he will have large men wearing red jerseys in his face when he has the ball and when he hasn't, a challenge that he is looking forward to.
"It's obvious they're bringing a bit of line speed to teams have to adapt. Typically, it's a different style of attack to what we're used to. It works for them.
"I enjoy a challenge ... that's just one part of it."
He did allow a smile when asked about his brothers, however. "Very special," he said in reference to playing alongside them. "Everyone from our immediate family made the trip up so I was pretty happy to see them afterwards. I'm a proud big brother of the two who also played tonight, so hopefully we can play many more."
And there was a hint of a wild side when asked about how he would celebrate; a beer, perhaps, and maybe a piece of chocolate. But given the discipline with which he conducted himself on and off the field, one suspects it wouldn't be much of either.
"I might have a beer. I might have to have a bit of chocolate later or something. I'm pretty proud to reach the 50. It just seems like yesterday that I played my first. Now I've got two brothers in the squad. It's unreal. I'm just excited about the few weeks we've got ahead now."