The article is talking about art in promo material.
Think about it: whenever you see a piece of production art featured in a social media post or a press release or a game announcement at a big televised showcase, all you ever see is the art. You never know who made it, whether it was created by an individual or a small team (or even a studio).
The only one I think is reasonable is GraphQL. But that isn’t rest, and HTTP is just one of the transport layers it supports.
For anything claiming to be RESTful, it’s a crime.