is one piece episode 789 filler?

Big Mom continues her mindless rampage through Sweet City as she searches for croquembouche. She eats several buildings and even some living food, but there is no croquembouche in sight.

The ministers desperately try to get some croquembouche made as quickly as possible, but the chefs tell them it will take at least another half hour to get them done right. In Sweet City, a little girl finds herself caught in front of the rampaging Big Mom with nowhere to run, but she is suddenly rescued by Charlotte Moscato, Big Mom's 16th son and Totto Land's Minister of Gelato.