What? I don't know when any of these were not perceived as skills. I'm not saying this to be elitist either; I'm fucking embarrassing at all three.
This post has a solid, positive message of "we should be wary of being too rigid in our assessments of human creativity" and "just let yourself have fun", but it comes from a really weird assumption that humans haven't been judging humans for these things for literally ever.
When did the "so now" part start, exactly? And how are we arbitrarily delineating "skills" and "behaviors"? Distance running is a quintessential human behavior, but it's also a skill.