is one piece episode 135 filler?

The episode begins on an island where a very exhausted Zoro wanders around. A group of pirates are seen laughing at a bar named W Brothers.

The head of the table is a bandit named Billy, who proclaims he will "drink this bar dry" with the other pirates questioning him. Yosaku notices Billy and finds out his 5,000,000 bounty.

Johnny is shown to be very reluctant and tells Yosaku, who tries to counter Johnny saying that they can't just take the small guys forever. However, Johnny is still persistent not wanting to risk instant death.