is one piece episode 984 filler?

Although Orochi believes that the Nine Red Scabbards have been stopped, the raid on Onigashima officially begins. Kin'emon leads the eastern forces while Denjiro leads the southern forces up the mountain paths.

Kid decides to go his own way and barge into the island head-on, and Luffy follows him with Zoro. They enter the party hall and find a raucous party being thrown.

Although the Nine Red Scabbards are concerned, Law reassures them that it was part of the plan, as Luffy and Kid were meant to be the first decoys at the front gate.