Yeah, I've been reading through the back catalog of Tim Urban's WaitButWhy, which is often entertaining and sometimes thought-provoking, even if only in a just-a-blog-post manner. But whenever Urban mentions Musk I know I'm in for some breathless hagiography. True, these posts antedate Musk's Twitter disaster, "pedo guy", and some of his other more notorious failings; but, seriously, even in 2010 someone thoughtful like Urban couldn't tell Musk is an utter tool? Yet Urban literally called him a modern Galileo.
But that's the thing. People are bad at evaluating others, and they're bad at reassessing their own ideas in light of new evidence. We are, as a species, very vulnerable to cults of personality, and sometimes people who are socially awkward or anxious in particular ways are even more vulnerable than average. (Less-developed defenses? Perhaps, but I think it's more complicated than that.)
Really the only solution is to distrust everyone else and be correct about everything all the time, which is my preferred approach.