Every person I saw was in a bunny suit. At hotel 1, they never entered the rooms. Swab fairies in both hotels were using hand sanitizer on their gloves and/or put on fresh gloves for each person tested.
Food (or something resembling it) was dropped off with zero contact. It was set on a small table outside the doorway as the person pushing the cart passed. 9 times out of 10, even if I opened the door very quickly, the delivery person was far down the hallway before I could reach out to grab my meal.
Temperature checks were done by thermometer gun to the forehead.
Based on all of the above, the odds of staff spreading the infection between rooms is incredibly low. On the other hand, there was at least one incident in hotel 1 of one or more people exiting at least one room. If this involved people from at least 2 rooms interacting, that would be a much more likely way to spread the virus.
I have read that the dedicated facility in GZ uses robots for food deliveries. There's also a device to monitor body temperature inside the room. These features would further reduce the chances of a staff member spreading the virus.
Remaining thoughts:
Anyone can put up with cold, low quality food for a few days, but doing so for 2 weeks is terribly demoralizing. If the dedicated quarantine facility in GZ has resolved this issue, I hope it's expanded as quickly as possible.
I had to get a nasal swab and a blood test before being allowed on the airplane. Is this blood test able to reliably detect an infection earlier than a swab test? Are there any other forms of testing that can reliably spot an infection earlier than a swab test? I'd happily put up with things worse than a bristle brush up both nostrils if the result was being proven to be safe for release in 12 days or less.