is one piece episode 967 filler?

Roger contracted a terminal illness and knew he had under a year to live. Still, his crew kept going with their adventures, merrily singing Binks' Sake along the way to a Sky Island.

The Roger Pirates went up a Knock Up Stream, entered Skypiea, and found the ancient golden city of Shandora. There they found its national treasure, the belfry bell as well as a Poneglyph.

The Poneglyph told of a certain weapon called Poseidon located in Fish-Man Island. They decided not to steal the bell, but left behind a carved message stating that Roger had reached a sky island.