is one piece episode 464 filler?

As Oars Jr. makes his appearance breaking through the marines just as the Shichibukai and the Marines are impressed by his size. The marines then are soon to attack him with cannon balls, which have little to no effect on him.

Given that he is such a large Giant, the Giant Squad of the Marines is forced to leave their defensive positions to attack him, but he is fast to repel them temporarily by throwing them a Marine battleship which opens a way for the Whitebeard Pirates through the plaza, and as them attack through the place, one of the pirates is about to attack Koby but he is saved by Rea…