honestly, that's how I read this article. Not sure why so many people seem to be agreeing with him... I guess it speaks to the general understanding about how to use python type hints
I like it, and I agree with you. Websites follow some simple design rules, some from typesetting, some new especially for the Web. Not least because of the behaviour of base components and the availability of styling libraries that keep their own smell around no matter what one does.
I like to draw on my websites too. I write a gpu-rendered background for basically any website I make for fun.