They can, I think that's the point of the "avoiding in-person meetings" warning.
Say you have an office in South Korea. A South Korean developer starts working for you as a remote employee, and their IP looks like it's connecting from South Korea. You say "cool, awesome, but you need to come to our office in Seoul once every two months for our regular all-hands meeting," and they keep skipping out on it, claiming family emergencies or whatever. That's the warning.
That was my understanding.
