These targets are simply designed to help officers understand that they don't know what their imminent lethal threat may look like. A good firearms instructor would preface training with these targets by telling them that the scene depicted could very well be innocent, however in this instance the nice lady with the kid in one hand and gun in the other has told you in a loud voice she is taking the kid to sacrifice on an alter of fire and her finger is even now tightening on the trigger to shoot you because you are in her way. " 2 body 1 head. Ready. Up!" Or whatever range command, whistle, turning target you use. Obviously it is a deadly threat and should be taken care of in the appropriate manner.
Now, the best way to handle these incidents is through role play in force on force situations, except........Gramms who has a tumor and the voices in her head are telling her to kill the police doesn't look like Gramms in force on force training..........she looks like Darth Vader, as does everyone else because of the protective gear. Role playing with Gramms, but without projectile throwers leads officers to not take it as seriously and you are back to will they actually pull the trigger when they need to or will they break down because they aren't prepared?
I would be fully prepared to go into court and answer for that target with the mother and child because we have had a shooting where a mother whose parental rights had been suspended due to drugs and mental instability took her own child hostage and then shot at the police when they were trying to throw a phone in her window to negotiate with her.
Good trainers will use the targets to good effect. Bad trainers will do bad things regardless of what targets you give them.