In a way I hope you are right because if not an innocent old lady was killed senselessly. In a few weeks she may be on this victim list though. I would have rather seen 3 LE not shot and her taken to jail if she was dealing.
The police have a tough job in the war on drugs. To prove their case, they must collect evidence. If they knock and politely wait until the occupant reads the warrant, asks questions, and then finally complies to a search the drugs are flushed down the toilet. In the sixties and seventies, the tactics soon evolved where police made their obligatory statement of intent, then they battered the door down, and rushed to seize the evidence before it was flushed. On occasion they are greeted by occupants shooting at them. It's not an easy job. It seems she was more intent on using deadly force than the cops.