I'd agree that "job" should imply "full time job" unless explicitly qualified; otherwise hiring 10 people for 4 hours a week would be 10 jobs rather than 1. But I can't see "job" why it should mean "job at an enterprise organization", which as far as I can tell is what you imply with W2s and health benefits. There are millions of Americans who are self-employed, file their own taxes, and have (unfortunately very expensive) individual health insurance. It would be bizarre to say they shouldn't be counted toward headlines statistics like "economy grows by 20,000 jobs".