I'd say the mere presence of it as a separate tag is the most important point.

You're reading an article. It has a disclosure associated with it. Wouldn't you like to know that?

I mentioned the possibilities of the situation arising in other countries in the third sentence. It's only US-centric because the US (as far as I know) is the only one who has implemented such a policy. I think it's safe to assume the same will happen in other countries.