I have been on both sides of remote work, so I totally get that it's not a slam dunk. It works a lot better for companies that have a strong culture established in a home base, and it works a lot better for experienced folks than green college hires. I have shut down the interview process myself when I felt like working remotely wouldn't work out at particular companies.
Even given all of that, I was pretty amazed how quickly some of the conversations got shut down. No remotes, we don't care who you are or what your experience is. I didn't talk to any companies outside of SF that were that quick to say no.
FWIW I landed at Stripe, which in fairness is probably one of the companies pg had in mind when writing his original article. I agree with the spirit of this, and I also don't really agree with a lot of things in pg's essay. But the particulars here might be totally wrong. At least one company in his network is really remote friendly.