Misleading title. I was expecting to read about why devs actually embrace type hints. What the article is about is why you should and how you can use type hints. That's valuable, but different from what the title suggests.
Besides, the lack of static typic is what makes a lot of the appeal for beginners. It's much harder to convince a non-CS beginner why they should bother with the extra burden of type hits. They are optional anyway and just slow folks down (so they might think). Careful with generally demanding that everybody use them.
But they probably help coding assistants to make fewer mistakes, so maybe that will soon be an argument if it isn't already. (That's an angle I expected in the article.)