The media has picked up on a lot of these because the numbers are extraordinarily high and it's on the forefront of the news more than ever.
I'm sure there's lots of reasons for this and not limited to promoting racial problems.
No, the numbers of police action shootings are not higher, only being focused upon at a fever pitch.
Also, it's the sort of thing to get a person's life ruined for simply stating the fact that criminals, especially violent criminals, tend to prey upon those within their own racial/ethnic group.
And, of course, reduced policing in communities where crime, again especially violent crime, is most prevalent, will inevitably result in the deaths of more innocent people from said communities.
IOW, if BLM gets its wish, there will be far more black folks killed, but at least they'll get killed by other black folks.
Of course, merely making such obvious and uncomfortable statements will get a person ostracized these days.