is one piece episode 287 filler?

After Kaku utilizes his new body to cut the Tower of Justice in half, Sogeking and Zoro realize that they have been handcuffed together, now having to face both Kaku and Jabra together, with a huge disadvantage. Jabra says that Kaku should be ashamed and a professional doesn't let his emotions get the better of him, as Kaku gets offended and Kaku tells Jabra that giraffes are awesome, and he loves them, and Jabra says "Fine.

Whatever you say, man." As Chopper finds the two of them running away from the wolf and giraffe, he is told to look for the number 2 key, the key to unlock their cuffs.