is one piece episode 774 filler?

Zou continues to shake from the cannon fire of the Beasts Pirates' fleet hitting Zunesha's leg, and the people on Zou struggle to stand; as this happens, Luffy and Momonosuke writhe in pain due to having an overpowering noise inside their heads. The buildings in the Guardians Residential District begin collapsing, and one falls on Tristan, but Franky catches it and saves her.

Wanda tells everyone to congregate together and get away from the buildings, but several trees are uprooted and fall on them.