These no knock snoopy snipers are a relatively recent development. Who the hell has been training these assholes to slaughter people’s pets for no reason?
My guess is that it is a Federal program. BATFE perfected the kitten dance long ago.
For real entertainment, consider that orgs like the BATFE and FBI and others are briefed on who bad guys are by outfits like the SPLC, who are considered 'experts', and you get an idea where the stuff that trickles down comes from.