You make it sound like the police broke into her home and deliberately pointed weapons at her children. That’s completely bullshit.
The police had a warrant signed by a judge. They repeatedly asked her to open the door, she refused. This went on for over 20 minutes. When they eventually did get inside, they’re entering a premise where the suspect had already demonstrated to not be cooperating and it’s standard practice to enter with your weapon drawn.
You could argue with whether the warrant itself is justified. But the police did everything the way they’re supposed to and the only person who put those children at risk was the mother who refused to cooperate with a legally signed warrant.