The book might have some flaws but this article is flat out reactionary drivel.
Example slop: https://substackcdn.com/image/fetch/$s_!ajgq!,w_1456,c_limit...
What the research _actually_ suggests is something more like a combination of those pictures. Except that the scientific research isn't framed in terms of "bad behavior". So that alone should give you a clue about where this blog post is coming from.
That image alone exposes the worldview of the person who wrote this, something like this:
~some people are good quality, some people are bad quality. if you're born as a bad quality person, it's something like bad luck / your fault for falling into bad behavior, no wonder you're struggling. you need to work harder but it might just be that you're a dud.~
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