Not really, because once there are workers other than Service Workers, they'll have their own names. To be clear, a Service Worker is one kind of Worker. At the moment it's the only kind, but we could introduce others in the future. For instance, maybe we'd introduce a "DNS Worker" that responds to DNS requests.
Also note we didn't invent these terms. "Workers" and "Service Workers" are W3C standards.
Also note we didn't invent these terms. "Workers" and "Service Workers" are W3C standards.