[KevinP73]

In some (most) of the shows you're right. The producers seem to think we, the viewing public, need some drama to keep us tuned in. Maybe they're right. I know I'd watch even if there was no fake drama. And of course there's a film crew near by. How else are you going to get it on tv without the film crew.
More than a couple of the participants on Naked and Afraid have gotten seriously ill as a result of participating. I don't see that as an indication that the whole event was staged.