Some of the examples given are often implemented on UDP rather than HTTP or WebSockets, so the content here is a little (lot?) off base.

HTTP3 is a different beast, but more complex than needed outside the browser.

Article is poorly written and contains at least one misspelling.

As a former rails developer (disabled now), I also hard disagree with some of his examples.

I encourage the writer to do more to educate himself before making such broad proclamations.