It could be and he could have answered with that. It isn’t wrong, but stating opinions and not doing anything about them is what his article is about. So, it shouldn’t stop with just his opinions, not when he wants more from us as a society.
And yes, this article should achieve something. Not because all articles should, but because I feel this is an important social issue.
I have nothing against his article. The only problem is that I have seen so many versions of this which end with just opinions that I wanted more. And that’s it.