I see a comment there making much the same point - https://marginalrevolution.com/marginalrevolution/2018/05/ha...
University philosophy departments are not in the business of teaching critical-thinking skills to the masses. That is the responsibility of high-schools. (Or at least, it should be.)
Indeed, the works of proper philosophers are generally completely unknown to those who haven't formally studied philosophy. I doubt your average STEM graduate could name 3 living philosophers. (I'm of the opinion that this says bad things about what philosophy has become, but that's not the point.)
That's how we end up with articles like this, which claim to summarise the recent progress of philosophy, but make no mention at all of any real philosophy, recent or not.