is one piece episode 429 filler?

After escaping from the net, Luffy knocks Largo far away and goes off to fight him. Nami pretends to evacuate the villagers but takes them through other tunnels to surprise the Amigo Pirates while they are fighting Zoro and Sanji.

Luffy fights Largo but becomes trapped when he turns his entire body into a net. Luffy uses Gear Third to inflate and break out of the net before defeating Largo with Gigant Pistol, destroying his ship in the process.

Boss saves Luffy from falling into the sea and then starts fighting him in a rematch that lasts for hours.