is bleach: thousand-year blood war (bleach: sennen kessen-hen) episode 33 filler?

With the castle of Wahrwelt being raised on its central platform and bearing Silbern, the five Schutzstaffel stand atop the tower behind the latter, where the nearby Gate of the Sun begins rotating as Yhwach addresses Sternritter "X" Lille Barro, who looks at his Quincy Cross; "M" Gerard Valkyrie, who proudly holds his fist to his chest; "C" Pernida Parnkgjas, whose glowing dots reform into a Quincy Cross underneath its hood; "D" Askin Nakk Le Vaar, who smirks and adjusts his hair; and "A" Uryū Ishida, who lets his Quincy Cross dangle from his hand with a neutral expression.