Naruto Shippuuden Episode 156

[Janusz]

Not a spoiler since it already aired....

This training, in the manga, took place between scenes of Sasuke's battle with Killer Bee. Before and after.

So yes... you hit the nail.

Ah, I thought it seemed less rushed in the manga. So that's why.

[Archangel]

Ah, I thought it seemed less rushed in the manga. So that's why.

Less rushed, but rushed nonetheless.

It's like the anime took it as a dare how the manga made Naruto a world class ninja in something like 5 chapters and then went the extra mile

[DarthEnderX]

Doing it in 5 chapters is probably to make up for not doing it at all in the previous 400.