It’s wrong and is a sign of very sad times that people are being killed by police. There seems to be a lot wrong with the system in the USA.
I’m not defending the killings. But, perhaps the police officers readily draw their guns because there is a high possibility that the person they are trying to stop will also have a gun (legally). Maybe their mindset is that it’s “him or me”.
We don’t have the same problem here because very few people have access to a gun and even fewer carry a gun on the streets.
As maccruiskeen pointed out, it’s a big country with a lot of police people doing their jobs without anyone getting shot. We hear about the small number of incidents that don’t go to plan and it’s right that there is coverage of these killings.
If the Americans changed their mindset about guns and gun ownership it might help to reduce the number of similar incidents.