If you are saying "malicious requests only come from foreign countries" then of course that is silly.
But "for these businesses every connection from certain continents is an attack" is absolutely true.
I've worked with these businesses, worked with their CEO on their business needs, and seen their internet traffic. They, really, have absolutely no need to interact with Asia. They aren't hotshot SV companies trying to become the global leader of VR selfies, they are just boring[1] businesses sending plain old physical goods to customers within a thousand miles of them.
[1] Boring isn't a pejorative in my mind, but I know it is for some other people.