is one piece episode 90 filler?

Hiriluk swore that he would somehow make cherry blossoms bloom in Drum Kingdom, a miracle he was certain would save the nation. Kureha was skeptical, but Hiriluk was certain the vision would save his people, just as he was convinced they had saved him.

In the present, Chopper is sitting atop Drum Castle following the end of the Luffy's fight with Wapol, contemplating his time with Doctor, and thinking of his Jolly Roger. He also remembers how Hiriluk told him once that he should go out to sea someday, so he can see how small his problems really are.