It’s not done yet. The ammophiles will certainly appeal it to the SCOTUS, which isn’t exactly rational lately. I’m sure Justice Alito will find a relevant quote from a 12th century blacksmith saying that the Duke cannot legally prevent him from forging horse shoes, and because horses are instrumental to war, are considered “weapons” and thus, the government can’t place any sort of restriction on guns because horses are people too, he’ll say, citing Tina Belcher.
There have actually been a few cases that have made it through the courts that apply “employee” status based on how the company treats the worker rather than how they’re paid.
Especially in cases where the worker is on long-term assignment somewhere like Google.