Comment by kelnos

I think you misunderstood the article (or only read the first couple paragraphs). The author sets the stage with the statement in the article title (a quote heard from other people), but shows that those fancy language features in some languages are exactly why rich, easy-to-use libraries can be built. And that some of these rich, easy-to-use libraries simply cannot be built in some languages that lack those features.

So you don't actually disagree with the article.