Besides never missing an opportunity to 'slam' the opposition, I have no idea why this is being construed as an ATC failure.
That's part of the problem here, everyone is just taking political potshots. Which is to be expected. But the danger is you lose sight of the real issue. As you mentioned, the helo pilot's loss of situational awareness. (Did they ever even have situational awareness?)
We can't be getting into these situations where every crisis is met by this typical American emotional reactionism. We can't be blaming the "left", or the "right", or the most ridiculous one which was "it was the black guys somehow". We gotta stop letting that crap distract us.
Operator error is only the first 'why' in the 5 whys for this incident.
"Yo watch out for that big plane on your left" and then hope for the best.
Just saying what I've heard. One issue is that the controller allowed visual separation, to begin with. They say he should have known that it was difficult, especially at night, and shouldn't have allowed it.