Observers don't detect sculk shrieker shrieking properly

If the sculk shrieker gets activated by the player, the observers only start to detect it when the darkness gets applied, instead of when the shrieking begins. This causes inconsistency in terms of how observers detect block updates here + not in parity with Java

How to Reproduce

1. Place a sculk shrieker, with observer and redstone lamp on the side of it

2. Step on the sculk shrieker

3. See how the observers detect it

Observed Result
The observer only start to detect it when the darkness appears on the player

Expected Result
The observer should detect it as soon as the sculk shrieker starts to shriek