I'm not defending no-knock raids, over-utilization of SWAT teams, flash grenades, police militarization, shooting dogs, the drug war, etc.

All I'm saying is that spoofing a call to the cops that says "I just killed my family, and am about to shoot any cop that shows up" is dangerous as hell no matter what the police are armed with. Cops are going to show up, they're going to fear for their lives, and they're going to treat the victim as a violent threat.