is bleach episode 159 filler?

In a dark laboratory room, Szayelaporro Granz watches surveillance footage of the battle between 6th Division Lieutenant Renji Abarai and Yylfordt Granz in Karakura Town, where he smiles as he notices the flaws in Renji's Bankai, Hihiō Zabimaru, and is alerted by an alarm going off to Renji and Dondochakka Birstanne running through a corridor in Las Noches. Meanwhile, on the sands outside, a stunned Yasutora Sado is slashed across the chest by Nnoitra Gilga and collapses while his Fullbring, Brazo Derecha de Gigante, dissipates.