For me, the key takeaway was in this quote: "If you go to the same prestigious universities every single time and every single year to recruit people ... then you are going to get the same people over and over again."

That is something that grounds it in not just being a minority thing but also a "oh you didn't go to an Ivy, MIT, Berkeley, or Stanford" thing.

There is a fundamental flaw in apparent measurement method: authors have counted graduates, but compared them to already employed. Authors seem to not take into an account the workforce present before CS graduates entered the job market.