None of advice is based on the premise that you can stay out of the emergency room by being dead.

It sounds like it's based on what people who work at the emergency room saw. How could they possible know why you're not in the emergency room?

For that matter, how do they know it's not just that most people let themselves get kidnapped? If most of them do, and an equal portion end up in the emergency room, them most of the people in the emergency room will have let themselves get kidnapped.