is bleach episode 22 filler?

At the White Way Gate of the Sekkiseki wall encircling the Seireitei in Soul Society, Jidanbō Ikkanzaka holds up the gate with Ichigo Kurosaki standing next to him as he fearfully stares at 3rd Division Captain Gin Ichimaru. When Ichigo wonders who Gin is, Yoruichi Shihōin identifies him while Gin comments that this is not good before slashing Jidanbō's left arm with his Shikai, Shinsō, leading to it spurting out a massive amount of blood.

No longer able to move his left arm, Jidanbō lets go of the gate with it and is forced to his knees as the gate presses down on him, with his remaining hand holding it behind his head above his neck, prompting Ichigo to call out to him in concern.