[amagaeru]

Why would they have to stop working for Microsoft?

Microsoft is a large, multi-national corporation. What better way to say "We still support these people" than, where possible, helping to relocate them to an office in their country of origin? Not every country, or city, has a Microsoft office, but Microsoft isn't exclusively in Redmond, either.

This issue should not be simplified to "You have to go back." Even if it were, that would still leave a lot of creative solutions for how Microsoft (and other large, wealthy corporations) could take care of the employees they claim to care so much about, regardless of where they live.