We cannot even get the police to agree that the deaths represent failures: they will usually dig up or even fabricate anything negative about the victim to imply that he or she deserved to die. You can see this happening in the comments here too.
It is not suprising that people want to ground the police.
Interestingly I was having a conversation about police before George Floyd. I had wondered whether policing should be one of those rotational civic duties. All able bodied people spend some time being a policeman. I think spending years only being called when things go bad makes police less sensitive.