is bleach episode 189 filler?

Injured from Ichigo's Getsuga Tenshō, Amagai begins feeding his Bakkōtō more power, stating that the fight will not cease until he's gotten his revenge. As his Bakkōtō gives him more strength, Amagai sets off a wave of attacks towards Ichigo, who dodges them all.

Amagai strikes Ichigo, pushing him into a wall and then into a building. As Ichigo gets up, he sees Amagai launch an attack at him.

He takes the hit, but is accused of underestimating the Third Division captain. Rukia Kuchiki wonders why Amagai's Bakkōtō hasn't taken over his body and is told that the Shinigami has repressed it with his Reiatsu.

Amagai then faces Captain-Commander Genryūsai Shigekuni Yamamoto.