While I agree with the thesis (Peterson is indeed a shallow intellectual), I disagree with the author's position that there are no deep intellectuals left. Without naming names, the reason we don't hear from them is because of the current state of the internet, where communications is so democratized that it is impossible to curate effectively. In short, the noise exceeds the signal, and so we only hear about the demagogues, whose one-note message can be amplified sufficiently to rise above the rest. More nuanced voices offering complex opinions are difficult to distinguish amid the sea of uninformed opinions and criticisms.
The author bemoans that intellectuals have failed the general population by being afraid to dumb down complex messages for general consumption. The only flaw with this theory is that modern life itself is rather complicated, irreducibly so. Simple explanations are often wrong, and since true intellectuals pride themselves on being factual and correct, it would be beneath them to offer such solutions.
What we really have is a society that prides itself on anti-intellectualism and is outright hostile to reasoned discourse. Until society holds itself to a higher standard, we will get the intellectuals we deserve.