Board Thread:Theories and Speculation/@comment-38812954-20190831032416/@comment-9782468-20190910042823

Because Naruto and Sasuke's ultimate attacks have approximately the same power. But there's a reason Naruto could spam SHadow CLones and Rasengan as a kid while Sasuke was limited to 2 Chidori. Their gap in power and stamina didn't change much.

Naruto can literally just shed the bits of his cloak that are burning.

Amaterasu was utilized with Ultra Big Ball Rasenshuriken which packs a massive punch along with microscopic blades, and the Ten Tails just shed the burning flesh with no issues. Naruto's chakra cloak isn't useless. Sasuke's highest level of piercing attack was unable to get through Naruto's cloak. A bigger impact area with slow-burning fire won't get through the cloak.

Sasuke can't bring enough intensity to actually get through Naruto's cloak before Sasuke himself runs out of chakra.

Again, it's not never-ending

Also it's not vaporizing anything except water, since Amaterasu burns slow

Any flames left behind will be shed by Naruto.

You still ignored @Vlad