is one piece episode 477 filler?

The Whitebeard Pirates begin to panic as Garp who is considered a legend, has decided to battle. Whitebeard then tells them that Garp is just "an old soldier", but Akainu interrupts him claiming he should "focus on his enemy" and attacks with his Hound Blaze, which is deflected by Whitebeard causing more destruction in the plaza.

Sengoku then orders for more executioners as the pirates break through, but are stopped by Pacifistas which are soon defeated by the alliance of pirates. Ivankov watches over Luffy and is told by the surgeon that Luffy is in serious danger.