is one piece episode 670 filler?

Trebol notices a fly, and using his devil fruit powers, he shoots the fly with enough force to knock it through the wall of the officer tower. This scares all the dwarves, but Leo boasts that even if he can hit a fly, he will not be able to hit him, and runs towards the tower.

As the other dwarves and Usopp cheer Leo on, Robin stops him. At the Colosseum, as a fighting fish jumps towards him, rather than dodging them Burgess attacks them back with his Surge Elbow causing the fish to crash into one side of the Colosseum.