is one piece episode 893 filler?

Right after Zoro's attack on the magistrate, the magistrate's remaining subordinates race to cut him down. Zoro holds them off with the seppuku blade and a stolen sword, and after the latter gets broken, he makes his way to the magistrate's platform where he reacquires his three swords.

With all of them equipped, Zoro unleashes a massive whirlwind attack that overpowers all his enemies and destroys the magistrate's home. In the aftermath, Zoro's wanted poster is put up across the city.

Franky is surprised when he hears the news and Robin is covertly shocked to see Zoro's poster.