is one piece episode 455 filler?

On Tequila Wolf, a bridge is being constructed. At the Prison Tower, a guard asks how the Seastone Armlets fit on Robin, but Robin doesn't seem to care and is resisting interrogation.

The guards find out she sank six ships. They worry she could wipe out the entire country.

Another guard reports the delay in the construction and is told scale back the meals to one-a-day. As more laborers begin to resist, the guards are more worried about Robin.

Outside, the slaves are working against their will. Soran serves a meal to cruel guards and is tripped.