is one piece episode 618 filler?

Luffy is getting ready to hit Caesar Clown with an all out attack. Caesar is begging for mercy, even offering Luffy a job in his organization.

Luffy hits Caesar square in the stomach with Gomu Gomu no Grizzly Magnum, knocking him through the gate to the R-66 corridor and into the darkness beyond. Throughout the New World, brokers are watching with mixed reactions.

One calls it a joke, another gets mad at Caesar. Tamago decides it would be a good idea to inform Big Mom about what transpired.

Another broker declares that Joker is going to make his move.