is one piece episode 164 filler?

Wyper discusses with the other Shandia warriors about Gan Fall entering Upper Yard, they thought that Gan Fall did not come to fight Enel for his position as God but for another reason. Aisa uses her Mantra abilities unknowingly seeing Satori lose, this frightens her making her scream during the Shandia meeting.

Aisa tells Wyper that two voices disappeared, they assumed that Gan Fall and Shura killed each other and think that it is now the best time to attack Enel. Aisa tells Raki that Gan Fall did not defeat one of the priests but another group of people.