I just finished the article and want to let it stew a bit, but since I baited you into making the thread I'll chime in about this.
My wife works for a FAANG firm and showed me pictures from the Christmas party from the firm's headquarters in California and there are virtually no white male faces in the pictures (old or young). I doubt it's because of DEI (it's preponderantly SE and E Asians that make up the attendees), but it does seem to align to an outcome that has the results described in the essay.
That said, I think it's interesting that the author's seems to be overly focused on industries that are under a lot of employment stress to begin with. Education, journalism, and film and tv production have all had a rough decade.
FWIW, the talk in film circles is that Sundance has gotten swallowed whole by the representation and identity focused programmers, and it's kinda ruined their ability to help promote indie films.