I agree. This "no-knock, dynamic entry" type of home invasion by law enforcement needs to be eliminated completely. I frankly don't give a damn if some junkie or junk dealer has the opportunity to flush some drugs down the toilet. There have already been WAY WAY too many "wrong house" incidents.
What they didn't do is first announce that they had a warrant ~ not that they didn't "knock".
Which means this really wasn't a "no knock" raid but rather something else.
There will be a reward (in Heaven probably) for someone who can come up with a name for a "unannounced knock raid".
Let them flush the stuff. Losing the stash and the money they were supposed to make from selling it is a bigger punishment than they'd probably get from the legal system, especially if they're in debt to somebody higher up the drug-trade food chain.