is one piece episode 638 filler?

Bartolomeo kicks Hack and knocks him out, eliminating him from the competition, this astonishes the crowd including the commentator who apparently was cheering for Hack to win. The commentator then gets control of himself and announces that the B block battle is still anyone's game and that there are 24 participants left, some of the combatants still left standing being: Bellamy the Hyena, Bartolomeo the cannibal, Dagama, King Elizabello II the fighting king, Blue Gilly, and Ricky.