That fails to address the main thrust of TFA: even if Harvard were to be purely objective in its admissions, it would be anti-meritocratic because of the boost of the credentials and the imperfections in any gating function.
I disagree that imperfect gatekeeping is worse than no gatekeeping.
I also disagree with his point that gatekeeping should come as late as possible. That's how you get graduate students loaded down with debt who can't get a job in the field. Gatekeeping should come as soon as possible to allow the people who don't pass the gate the best opportunity to find some other path to succeed in.
