is one piece episode 286 filler?

The initial confrontations between the Straw Hat Pirates and CP9 continue to develop. Kumadori continues his kabuki showboating before Nami.

Deciding she is at a disadvantage, Nami simply asks for the key. Although he offers to show it, he seems to have misplaced it, to Nami's irritation.

In the bathhouse room, Sanji opines that the water Kalifa is using to make tea for them isn't warm enough, and offers his expertise as a chef to make it properly. Meanwhile, Luffy finally makes it to the point where CP9 was located at their initial confrontation.

Naturally, they're not there.