The article assigns significance to the language when the real work is done by the libraries. And many good libraries inspire even more good libraries. At that moment the language no longer matters. But it matters in the beginning when people have to create the initial environment and this is what should've been underscored. Python lets you do so many things in so many ways that minor mistakes do not matter and everyone has the freedom to experiment, achieve results, discover that they've done something stupid, but at that moment you already feel confident to do it again, but better.