is one piece episode 366 filler?

Oars checks the bounties of the Straw Hat crew on his arm and doesn't know of Brook. He then spots Luffy, Nami, and Sogeking and goes off to find them, leaving the rest of the Straw Hats battered and beaten.

Perona has a nightmare being surrounded by roaches and being bashed by Usopp's 10-ton Hammer. She wakes in the real world surrounded by the Wild Zombies and is told of the events transpiring so far, and that Usopp has left.

The mansion is also crumbling thanks to Oars and he bashes some of the animals. The Ghost Princess spots Oars calling out to Nami.