You are missing the point and misrepresenting science. The reason to do science isn't to point things out, and that's not what they're doing here. They're not starting with the conclusion (except that it's perhaps the impetus to form various hypotheses).
Science tries to determine why things happen, and scientists make conclusions (and maybe more hypotheses) based on where the evidence leads. Figuring out why there's something wrong with these people is not a fruitless endeavor, because if we know why, we can potentially rectify it.