This is easily the most wrong-headed piece of writing I’ve read in a long time.
“But customers benefit from smaller file sizes too, because that makes web pages faster.” Certainly, that was true in 1996. And some web developers persist with political objections. But with today’s faster connections—even on mobile—optimizing for file size is less useful than ever.
I’ll leave it to you to see the logical flaws in every one of the arguments presented here by Matthew Buterick. Meanwhile I’m going to get off his lawn.