I think you've missed the broader point. The whole thing is a reminder that many 'progressive' companies like Facebook like to boast about how well they treat their employees - high wages etc - but in reality they outsource most/all of the lower-paid jobs. There's nothing wrong with this(!) but it does mean they lose some moral highground as a lot of people working physically in their offices probably don't have very good terms/job security after all. (Unless, of course, they also require good conditions for their outsourced workers too.)