They're not employees but 1099 workers sure sound like they're part of your 'Enterprise'. They could even be 'in house'.
Lots of 1099s actually work in the same building as employees. What makes you think they wouldn't be covered?
Lots of 1099s actually work in the same building as employees. What makes you think they wouldn't be covered?
how the people are paid has nothing to do with why Apple took the action they did.