is jujutsu kaisen episode 17 filler?

Miwa learns that rank doesn't reflect strength when Maki dismantles her despite being technically unranked. Nobara and Momo clash over what it means to be a female sorcerer — Momo argues for working within the system while Nobara refuses to accept any framework that asks her to be less than she is.

Mai and Maki's rivalry erupts, carrying the weight of family abuse and the Zenin clan's toxic hierarchy. The Goodwill Event's personal battles reveal more about the characters than any mission could.