That's a metaphor, and its confusing if not mildly infuriating.
#2 Its a technical term out of place that redefines what an OS does, as a member of the technical community feel a sense of ownership for a term that I routinely use. Its infuriating when you mess with something that is mine.
Its more confusing than infuriating. Mainly because the term os makes sense only to people like me, but doesn't match what up with what people like me know it as.
The OS part of the name doesn't help anything. I'm guessing its only there so you could have the name in the URL.