is one piece episode 363 filler?

Hogback wickedly laughs about how the zombies have lost the personalities of the victims' shadows. On creation, the zombies retain a fraction, until they begin to serve Hogback loyally.

Chopper then sees the doctor's true colors. Years ago, Hogback had once worked to save lives, and there were brief ways to restore people to life.

The reindeer now realizes that Hogback will not do it for the benefit of people. Hogback made a lot of money off his treatment for people.

Chopper knows he can no longer respect the mad doctor.