is bleach episode 295 filler?

After Aizen is hit by the Kidō spell Ittō Kasō and realizing that he underestimated Captain-Commander Genryūsai Shigekuni Yamamoto, he is immediately pummeled by a Hollowfied Ichigo. Ichigo launches a Getsuga Tenshō at him, sending him crashing through a building and wounding his shoulder.

As Ichigo continues his attack, Aizen blocks his blade and tells him that he missed his final chance to kill him. However, Ichigo points out that he did enough since he injured him, but Aizen questions where he hurt him as his wound begins to close up.

Ichigo wonders if this is High-Speed Regeneration, but Aizen tells him it isn't, claiming that he wouldn't undergo "mere" Hollowfication.