its pretty simple to me you stay in that bubble if you leave you can't come back and don't get paid
disney world has enough hotels, restaurants etc for this to work consider it like a little city or cruise ship on water
The issue is all the low-wage workers that are needed to support this. Cooks, cleaning people, maintenance...
Are they being allowed to live in this bubble?
In theory, it's no different than how expats live abroad... but far less complicated to operate because it's in your own backyard with a much smaller audience.
i.e. If you tell a low-wage maintenance worker we're going to employ you, house you in disney world, and all you're going to do for 3-4 months is your 4-8 hour shift and then... whatever you want within the accommodations we're providing you...
...that's pretty much every petroleum company in the world that employs expats lol, except instead of Disney World, it'd be some residential compound in Qatar with far more logistics, expenses, and medical/background tests to account for.
For something like this in Disney world, I think people are going to sign-up in droves. These aren't your 6 cert, 6 figure coli people.
I think the bigger/biggest hurdle is whether they'll lay down the law and mandate you have to stay in the bubble. If they don't, that's a whole lot more variables being thrown in.