Thanks for clearing that he thinks the toads have the same ability as jiraya
Sealing is not an ability it is a fuinjutsu, you make it sound like it's a bloodline tech or a clan secret tech..
Toads can use jutsu and releases so why can't they have sealing techs?
Naruto himself should have sealing techs for an uzumaki he seriously sucks in that category.
Anyway just as undying shino can be sealed, as has been shown in the forth war, so can undying flames.
Don't really matter Naruto can't dodge Amaterasu so he dies
Amaterasu is stated as unavoidable but it was never stated that it can not be dodged, sasuke dodged an amaterasu from sasuke, itachi is meant to have less control over his amaterasu, so is it safe to assume he slowed it down?
A's dodging of the amaterasu is a testament to his speed only because it was a short range attack, the same could be said if he had dodged a flame bullet at short range.
Not to mention sage made gives and extra layer of chakra on the persons body which can not be seen naruto could use this to dispel amaterasu.
BY THE WAY
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Jiraiya using a fire sealing scroll (not a kekkei gankai, not a clan exclusive jutsu, not a special sword, but a high ranking sealing scroll and the jutsu for it) to seal amaterasu, so I guess century old toads don't know how to use high ranking sealing scrolls.