is one piece episode 788 filler?

On Broc Coli Island, soldiers of Germa 66 enter a battle, where they easily overpower the weaker and less well equipped soldiers on the other side. As the massacre continues, one survivor attempts to avenge his wife and children by shooting one of the Germa commanders.

However, the commander has one of his soldiers take the bullet from him, and confronts the man as he forces his gun against his head. The commander angrily states that the man is making him late for his brother's wedding, and shoots the man before walking away, the battle having easily been won.