There's evidence that highly educated people are _more_ likely to believe in the Qanon conspiracy.
Belief isn't just shorthand for "checking out the evidence and making claims about the world on the basis of the probability of that evidence." There can be a will to believe whatever supports your social or material interests that trumps reason. We are now living in post-epistemological times.
Interestingly, at the end of the article he brings up pro wrestling and remarks on not believing it anymore. But this kind of credulity is almost the opposite of what pro wrestling is all about - you have to buy in to take part (kayfabe). Everyone does, everyone knows it.