Yes, it is US-centric. You all act like that many commercial websites are just like automatically doing international business. I am not even allowed to do business out of my state. I don't even need that filled in. You can see my website anywhere, but you can't be my client unless you're in my state. So I don't care.

Any company able to do business in multiple jurisdictions, well, that's just the kind of extra thing they can handle.

For an enormous amount of sites and for an enormous amount of users this is an improvement and the general reaction here is nitpicking and this self-evident charge that it's US-centric. So what. The principle would apply in most places.

In Costa Rica, there are no addresses but there are (now) post codes. You would have to take that into account to do business there. If this doesn't apply to you then it doesn't apply to you.

It's not like the internal US market is small. This solves a problem for a lot of people in a lot of cases.