is one piece episode 127 filler?

Although the people's anger is quelled, they don't initially believe Vivi's claim that "the nightmare is over". The people are still angry that King Cobra apparently attacked Nanohana.

At this point, Chaka orders the Royal Army of Arabasta to stand down. Also, Igaram appears, to Vivi's relief as she descends the clock tower.

He presents Kappa, the kid who was allegedly hurt by the Royal Army in Nanohana. Kappa testifies to the treachery of Crocodile and Baroque Works, and how Mr. 2 Bon Kurei impersonated King Cobra.

The people finally agree to throw their weapons down for good.