is bleach episode 351 filler?

Jackie has a dream about her past. In the dream, she is depicted holding someone and arriving in a doorway to find two bodies lying on the floor.

Then blood from the body she is holding drips onto her boots. She then wakes up and walks over to her balcony and says "That was a restless night." Ichigo is then shown at the Xcution's Headquarters.

He is ready for the next step in his training. This time, Riruka Dokugamine takes out a bird cage instead of the dollhouse from last time.

Ichigo resents the idea of going into the bird cage. Ichigo asks Kūgo Ginjō what the purpose of training like that would be.