Probably because it's way over the top. That comparison proposes that people who can't program have a huge mental deficit compared to those who can. There are

Probably because it's way over the top. That comparison proposes that people who can't program have a huge mental deficit compared to those who can. There are plenty of programmers out there who are not particularly proficient at thinking, and plenty of extremely intelligent people who aren't programmers. It's a needlessly breathless and self-congratulatory comparison, with limited perspective on the outside world.