Yes, but you're conflating police brutality with racial discrimination here. People of all colours suffer police brutality.
My point, both here and in the article, is that there are many real problems in the world. Some of them disproportionately affect black people. But that doesn't mean it's accurate or helpful to call them some new variant of racism.
Sometimes, I would argue often, the issue at the institutional level is that problems affect poor people. And black people are disproportionately poor. In these cases, I think the smart thing to do is focus on the poverty.
To extend the analogy, the more lenses you try to look through at the same time, the greater the chance you'll end up with a distorted image. Even if it's not perfect, as very little ever is, the most helpful thing to do is usually to use the lens that gives you the most accurate picture.