I'm glad the article resonated with you. I'm irked by the popularity of simpleminded positive thinking, self-help therapy, and so forth on Medium. But it makes sense that while everyone is relatively intelligent in some capacity (emotions, street smarts, book smarts, technical matters, etc), few can afford to specialize in philosophical, scientific, or critical thinking. Few can afford to be intellectuals because intellectualism doesn't often pay the bills. Indeed, it might be socially counterproductive.
I suppose the question is whether certain kinds of intelligence are irrelevant in our increasingly automated environments. We might think we're sophisticated adults because we excel in our civilized spaces, but those spaces themselves train us to be foolish and decadent in crucial ways. If we excel at consuming nonrenewable resources, for example, we might be infantile from an existential perspective, but responsible, progressive grownups according to our biased cultural standpoints.