is one piece episode 434 filler?

Luffy and his allies take a short rest after their defeat of Minotaurus and try to figure out what to do next. That becomes quickly irrelevant when the floor breaks, dropping them and Minotaurus down to Level 4.

In Level 4, a group of prisoners are shown carrying large, heavy pieces of lumber. One of the prisoners' attempts an escape by throwing his large piece at the guards.

He then runs into and hits Daz Bonez (Mr. 1) on the head, causing him to bleed. Daz becomes angry, swings his lumber around and knocks the escaping prisoner into boiling blood.