is attack on titan (shingeki no kyojin) episode 53 filler?

The Colossal Titan scoops up homes in Shiganshina District and hurls them into the air where they scatter across other parts of town as flaming pieces of debris. Mikasa Ackermann realizes from his Titan's actions that Bertholdt Hoover does not yet know where they are.

Conny Springer and Sasha Braus pressure Armin Arlelt for orders, but Armin recalls how he misread Bertholdt's intentions and freezes up without any ideas on how to proceed. He asks Jean Kirschtein to take command in his place.