So send them home with an O2 bottle and a cannula, or to a quarantine building. Don't intubate just to protect staff.
And from their perspective they have a point - if patients are sitting around mouth-breathing, everybody in the hospital will get infected. Then where do you get ICU staff?
Expand that to a hotel, if you put people in hotel rooms with these, you couldn't turn over the room without a very very thorough cleaning. I'd be worried to stay there until a few weeks had passed with no occupants.
Are those two scenarios I give real problems?