I mean, you know I'm just a police sackrider, and all I ever do is praise them and agree with everything they do, so take this with a grain of salt.
But when police crash through the wrong door and kill innocent people, it's not evil intent. I really doubt the cops are out there figuring out how to a) kill people who they know aren't doing anything wrong, b) not catch the criminals they've spent days or weeks or months surveilling, and c) alert those criminals so they can destroy evidence and set up a new operation someplace else, now that they know the cops are onto them.
Sackrider that I am, I'm pretty sure that's just carelessness at best, stupidity at worst. Not malice.