is bleach episode 309 filler?

Ichigo lands a strike across Aizen's torso, but Aizen instantly backs away in a flash of light from him to a nearby cliff. Ichigo tells him that it's a strange feeling: when he put distance between them Aizen asked him why and now it is Aizen who is creating the distance.

Ichigo then asks Aizen the same question. Aizen's wound begins to heal as he asks Ichigo if he liked that he had stopped his sword or if he is happy that he destroyed his Kidō and if he is happy he injured his body.

He then becomes enraged and yells at Ichigo to abandon his Human arrogance.