It claims you shouldn't throw out resumes based on simple heuristics and stuff that only correlates with programming ability because there are so few people applying who are any good, but has exactly one sentence to say about how to then actually find those few people: "I grill them, hard, on actual programming and actual software development."
Right. Sure. Every single one of the 500 applicants. Good luck with that. Get back to me in 6 months.
It's nice in theory to be super-inclusive about everything except "actual programming", but almost completely divorced from reality.
It sounds like someone who, hearing about heuristic solutions to the traveling salesman problem responds that "I cannot possibly accept a solution that may not be 100% correct! It's the computer's job to give me a correct answer, and I'm damn well going to wait for it, no matter how long it takes! Exponential, schmexponential!"
Heuristics have their place. Something that strongly correlates with what you're looking for but is much easier to test for can be very, very useful.