> Do you think muggles actually care about this?

Yes, you nugget. That's why UX is a thing. Just because you know how to traverse your thinking patterns doesn't mean anyone else (wizzards included) can.

Surefire way to write garbage applications and APIs: don't think about the user.

I beat this mentality out of any junior that crosses my path. You're not paid to write code, you're paid to deliver a product. You studied how to write code. Massive difference