is one piece episode 593 filler?

Chopper tells Luffy, Robin and Usopp that Nami was taken by the Yeti Cool Brothers and that Brownbeard was killed by them. Luffy becomes angry at Caesar for betraying Brownbeard.

Franky wants to use rumble ball so Chopper gives him one. He then takes it, turns into the monster form and chases after Luffy because he cannot control it.

Caesar realizes that Franky has Vegapunk's Pacifista beam and wants it. G-5 are fighting against centaurs and Caesar's men.

They are losing until Smoker and Tashigi show up.