Sculk sensor wool occlusion has directional bias

The bug:

Sculk sensors have a bias when detecting sounds from certain directions when wool is in the way. It seems the x axis is different from the z axis, where the x axis blocks sounds and z does not from diagonals 

Set up:

Example: https://youtu.be/7HN89WI5_SQ

Make the following two set ups.

Press the levers and see the responses