is one piece episode 709 filler?

Still fighting Bellamy, Luffy demands Doflamingo to release Bellamy. Doflamingo was surprised that Bellamy was not finished off yet and releases him from his control.

Bellamy starts to reminisce about his past, including asking to join Doflamingo thinking that Doflamingo is pride of the North Blue and that he is not a pirate who day dreams. Then he thinks of fighting Luffy in Mock Town, and meeting him again in the Colosseum.

Luffy promises to beat up Doflamingo and Trebol for him, but Bellamy stops him. Bellamy uses his Spring Hopper move and darts around the room.