The carpet, which is made of wool, doesn't dampen the vibration the same way that the wool blocks do. This was changed in Java Edition, but not on Bedrock yet.

How to Reproduce

1. Place carpets on top of any non-wool blocks
2. Place the sculk sensors next to it
3. Try to walk on it, break and place, and drop the carpet

Observed Result
The sculk sensors detect it.

Expected Result
The sculk sensors shouldn't detect any vibration caused by the carpets.