The thing is it was already about race. Even if that cop disappeared those men for completely non-racist reasons (and we pretend their motivation is even knowable in that way), the racial history of american policing is such that it's part of the story anyway.
A black person reading the race-sanitized headline is going to immediately think "yeah and I bet I can guess their skin colors too" and on looking into it find out they were right and come to conclusion it was obscured out of intentional complicity.
There is no race-neutral way to report on or discuss many things in an american context because those things are not race-neutral. We can certainly wish it were otherwise, but when we try to enforce that fictional neutrality we both obscure and create other problems.
The capitalization thing is just part of an ongoing and unsettled reevaluation of what "races" even are, what their boundaries and prerogatives are, how they refer to themselves and how they are to be referred to, etc. I respect your discomfort with it and would point out that probably very few people are happy with the current state of this nomenclature, but that it's almost completely irrelevant to the problems themselves.