The kernel of the argument in this post is hiring. The discussion about "coder culture"† is germane because it drives the gatekeeping function of in-group coders in hiring.

I don't have a problem with people discussing what is or isn't productive about how a stereotypical programmer behaves in groups.

But the real issue here is that the stereotypical programmer is given entirely too much authority in the hiring process; a ludicrous amount of authority once you see the alternatives available.

Only a tiny minority of tech companies hire against any kind of formal assessment rubric. A majority will make direct hire/fire decisions based entirely on face-to-face unscripted interviews --- no matter what kind of information has been collected in the hiring process, which is usually slipshod anyways.

If I'm right about why this person's argument is important, it's the hiring process that most urgently needs to change. Which suits me fine, because there's a lot more wrong with hiring in tech than bias.

† A concept I reject, but understand.