while the author is correct that the for-profit publishing is definitely a negative externality, i can't help but feel they are missing the forest for the trees when it comes to all the other worse issues in academia.
a full explanation of which would be much too onerous for a hn comment, but in no particular order: rampant scientific fraud, waste of tax payer dollars, wage suppression via "students" and visa-dependent laborers (J1 visa abuse), publish or perish evaluation criteria, lack of management training, blatant and rampant racism, etc. etc. etc.
the whole system needs to burn down and be rebuilt from the ground up.