The logic in this article is near-insane. "In the absence of linkedin and github, we chose candidates based on colleges...now that we have those, I judge based

The logic in this article is near-insane. "In the absence of linkedin and github, we chose candidates based on colleges...now that we have those, I judge based on that." Does this imply that because they're a stronger signal for performance at a company (debatable) that they're a good stand in for education?