If you’ve ever been around a raid where they claim to knock, there’s a big difference between what a cop calls knocking, and what a citizen would call knocking and announcing. Typically, it’s not knocking and waiting for someone to answer the door.
It’s somebody pounding on the door two or three times And yelling “police search warrant” and within one second the battering ram knocks the door off the hinges. In most raids where the cop claims to knock, the person wouldn’t even have time to stand up, much less answer the door. Knock and announce to a cop happens almost simultaneously.
What matters in this particular case is what happened in this particular case.