Aerosol contamination leads to heavy viral exposure to health workers and all patients in the vicinity. This leads to more sick patients, and fewer healthy health workers. Which leads to more fatalities.
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?