is one piece episode 52 filler?

Luffy has climbed up onto the platform where Gol D. Roger was executed 22 years before.

A guard calls for him to get down, since the World Government owns the platform. Alvida then hits the guard with her mace.

The entire crowd, man and woman, swoons over her new look, but Luffy only remembers her previous appearance. She claims she likes how he hit her at their previous encounter, and would love to have a strong man like him.

Other policemen move in, but are disarmed by Alvida's beauty. In comes Buggy, who uses a Buggy Bomb to blow up the courtyard fountain.