is one piece episode 404 filler?

Eustass Kid and Law's crews are fighting a battle against a Pacifista. The two captains dodge while the Pacifista's lasers hit several marines.

Killer rushes at the Pacifista and tries to cut its shoulder, but has to dodge. Bepo attempts an attack, but is punched away and decides to stay down.

Kid, mistaking the Pacifista for Kuma, shows his arms covered in metal objects and blocks a laser. He then uses Repel, blasting an arm of metals towards the robot, sending it flying and crashing into the ground.

Kid gloats on his victory while Law is dumbstruck.