Actually, Hinata died long before Naruto's death as she accidentally tripped and landed on a toothpick walking out her front door.
Himwarii just ceases to exist because "reasons"
That works too I mean either one works as it shows how pathetic Hinata is as a character that she gets killed in such a way or she off's herself because she lost her Naruto-Kun.
I would add Sakura should outlive them all, so we have ammo to fire at them like this. "Well, at least Sakura is alive look at how your great and so-called goddess went out."