Sculk sensors are not activated upon shulkers shooting

The Bug:

Sculk sensors are not activated upon shulkers shooting

Steps to Reproduce:

• Make a shulker shoot you.
  →  Notice how when it does so, the sculk sensor does not activate.

Additional Information:

Quote from the 20w49a Changelog, "A vibration is anything that causes physical motion". I would definitely consider this as physical motion, as a shulker is physically shooting.