Linked article is that until very recently, cops received more than the benefit of the doubt from review boards and the courts after violent/deadly encounters. Essentially, their word was treated as proof. That disillusionment of which you speak has been evident in many communities being policed for generations.

Now, many examples of video evidence contradicting police claims have come to light, often with spectacular media coverage, and cops are no longer taken at their word without evidence. I’m sure good cops are disillusioned by that, but the point is this disillusionment goes both ways. With plenty of justification.

Thus the need for collaboration and a reduction of the us vs them ethos across the board. A concept I suspect is dead on arrival at your hyper-partisan skull.