is one piece episode 655 filler?

Sanji attacks Doflamingo with Diable Jambe and Doflamingo easily dodges while casually asking if the person attacking him is "Black Leg" Sanji. Sanji uses Premiere Hachi and Doflamingo dodges again.

Doflamingo then uses his Goshikito attack on Sanji and lands a hit. He then turns his sights back on the Thousand Sunny, much to the horror of those watching from it.

As Doflamingo is about to go to the ship, Sanji uses Poèle à Frire: Spectre. Doflamingo blocks the attack but admits it is pretty powerful.

He then takes control of Sanji.