is bleach: thousand-year blood war (bleach: sennen kessen-hen) episode 17 filler?

's Quincy: Vollständig is activated autonomously by resonance. Several Shinigami are obliterated by the Quincy: Vollständig activating across the replaced Seireitei, and as Yhwach declares that it is time for the Gotei 13 to despair, Sternritter "T" Candice Catnipp notices that her wings have come out due to resonance, prompting Sternritter "Z" Giselle Gewelle to tell her to use it if she wants and deactivate her own Quincy: Vollständig since it makes her tired, prompting Candice to deactivate hers as well and insist that she does not need it.