is one piece episode 11 filler?

Nami and Zoro head to the cliff to look for Luffy. They discover Luffy at the base of the cliff, and they head to the bottom of the cliff to wake him up unharmed.

Luffy reveals to them Klahadore's malicious intents. Usopp runs to the village to alert others about the incoming attack, but the townspeople refuse to believe him, contrasting him to Klahadore whom they trust more.

The townspeople chase Usopp out of the town. Usopp then goes to Kaya's mansion to warn her about the danger, but she also does not believe him, believing it to be an unusually cruel joke.