is bleach episode 191 filler?

As Dondochakka Birstanne and Pesche Guatiche panic over their return to Szayelaporro's chamber, the Octava Espada explains that he can control his palace just like he controls his own body, altering the hallways to lead wherever he wishes. He reminds Renji Abarai and Uryū Ishida of what happened when they first entered the room.

He reveals that there are cameras hidden all over the palace, which he used to monitor them as he changed his clothes following their earlier battle. Knowing that they would try to escape, he altered the hall they fled through so that it would lead them back to their starting point.