is one piece episode 677 filler?

Usopp and Sugar scream as the latter passes out, which awes the dwarves and greatly shocks Trebol. Suddenly, all the toys are transformed back into their original bodies, resulting in celebrations in toy-only areas from the shipyard to the basement underneath the Colosseum.

Trebol quickly tells Doflamingo via Den Den Mushi about what has happened, telling him that the effects of the Hobi Hobi no Mi were nullified, with Doflamingo showing massive concern and asking him if he was joking. The people in the streets panic due to the unexpected transformations happening all at once.