The full context of that quote makes it clear that it's meant more as a wry joke:

> A venerable web application pattern that has had a small modern renaissance thanks to Remix, form submissions and redirects took a while to explain to my colleagues, on account of everyone being used to heavily client-side web applications.

(Although it's not really a joke, it's pretty amazing how many professional web developers these days don't know how to use forms without JavaScript.)

The opposite is why I'd never be a good web developer. I grew up messing around with PHP and if I spent the time to learn the modern stack, I'd constantly be thinking it's stupid.