is one piece episode 522 filler?

This episode opens and the Kuja Pirates from Amazon Lily come to see how Luffy is. Zoro, Sanji, and Luffy thank Rayleigh.

Rayleigh remembers his training with Luffy and tears up. The Marines are going after Zoro, Luffy, and Sanji, but Rayleigh slashes the ground creating a line telling the Marines not to cross it.

Sanji stops to take his bags of food with him, Zoro sees that the Marines went around so as to catch them. Perona appears after two years with her Negative Hollow ability and used it against the marines.