I think the smartest people have due respect for personal experience, partly because they know that we humans are basically quite ignorant, even in our vast knowledge. Nietzsche and Jung are two people who have said basically, "what works is true." That isn't to say Nietzsche wasn't relentless in wanting to avoid delusions of religion, but when he wrote to his sister, he said do what you need to do and be happy. And Jung obviously considered myth "true" because it worked for people, not because the earth was made in 7 actual days or whatever.
People that discount personal experience and perspective, even after the influx of existential philosophy many years ago, have problems in their epistemological ideologies, that's all I can say. Who is to say, as that article you posted starts to say, people may not be making rational decisions based on the limited knowledge their minds have processed, or the way various "evidence" has been presented to them, not because they are stupid, or illogical, but because they are just not gifted with the rare ability to see things broadly and deeply, nor have the equally rare courage to process ideas fairly.