Correlation isn't causation. Don't just buy that someone is fully to blame because someone told you they were fully to blame.
I don't understand the correlation isn't causation argument in this context. If no one ever tried to convince others of their thesis, with numerous arguments, what's the point of writing?
He could have said “perhaps there is a disconnection here” but rather opted to volunteer that he is in fact Very Smart and others are Very Dumb. With a position like that any writing that’s meant to convince the reader is pointless as there exists only ontological truths (things that he already agrees with) and pointless ramblings of cartoon buffoons (things that he does not already agree with)
None of the statements in this is the case, other than that there are smart people.