is one piece episode 473 filler?

Whitebeard enters the battlefield, which raises the morale of his pirates and prompts them to clear the way for him. The Marines shoot cannonballs to him, but he uses his powers to deflect them and destroy the cannons.

The Marines try to activate the encircling walls, but the ice prevents them from raising completely. A confused Squard is soon to blame himself for being fooled, as the Decalvan Brothers and the rest of the commanders, are infuriated by the foul tactic used, while Marco asks Squard if "he can redeem himself by crying".