There has been a deliberate campaign for the last 40 years or so to undermine the idea of expertise and intellectualism. This is one facet of it... basically, because an expert isn't 100% right, 100% of the time, your aunt's hairdresser is just as reliable a source of information.
but what about the guy on Youtube who had a D in Science class every year? Or a Podcaster who was a comedian and an TV show host? those are the people who we should all get out scientific knowledge from..