Over the top maybe, but when your opponents weren't even human-you needed all the help you could get. Atleast the nomads could be taken out by bullets.
"Long enough then." As someone who experienced Hell week in the army, twelve days was long enough for the body to reveal signs of treatment, and Bella looked healthy enough. "Aside from the obvious, what could you tell me about this place-and is it really just for us to work for this Manager, and nothing more?"
Because Sonya had experience with immortals and their view on humans-the Manager may've called them to run the resort, or he may've viewed them as entertainment, it could go either way.