How hax are current Naruto and Sasuke

[Dondaime Hokage Naruto]

Naruto learning to do Shunshin in base this late is pretty stupid, imo. Sasuke has been doing it since the beginning of Part 2, Kishi just forgot about Naruto. The only other time i remember him doing it is the first time he used KCM against Kisame.

Anyway, i actually think that their skills have been dulled. I mean... there's peace now. Naruto and Sasuke can handle mid-Kage level opponents with SM/MS alone. For them to need to resort to Rikudou Mode/RinneSharingan it would take an Ootsutsuki level threat, which there's no way they encountered, after Toneri. Since they have been living peacefully, i don't think they've improved much, if at all.

This^^^. Stronger opponents or close lvl opponents make you stronger and not weaker ones... After Toneri, I don't think anybody else would be much of a threat... They live peacefully now and there are no wars so you don't improve much during eras like this... Look at Gohan from DBZ, because of peace after the defeat of Cell seven years later he was weaker as an adult than as teenager...

 

[KCMNaruto]

Naruto reached peak of his powers against Kaguya's fight, unless in The last the movie he will reenter Rikudou Sage mode where he should show peak of his powers.

Sasuke reached peak of his powers in fight against Naruto, unless in the last the movie he will use Rinnegan against Toneri.

They most likely expanded their arsenal of techniques as they grown older and older reaching their Prime age. However due to peace time I doubt they sharpen/perfected their aready possesed skills. It is most likely that their's skills degraded even slightly...

One on One they can tie 3 eyed TT Madara, looses to JJ Hagoromo mid-hard diff

This time they may beat Kaguya without Kakashi or Sakura's help