Look i'm 85% sure of this because look at the facts.
"Kaguya Otsutsuki"
"Rabbit Goddess" (卯の女神, Usagi no Megami)
We all know what eventually kills a running rabbit.
Sasuke and Naruto are the Rabbit Snare, with their seals, they with catch and stop Kaguya.
It is a ninja's job to kill...