The ending would have been better if (spoilers)
they all woke up inside of the RV.
It seemed like the creators didn't know how to end the movie. I agree with them that watching all the characters be explicitly murdered would have been somewhat out of place as I enjoyed the ambiguity in not knowing if it was a "haunt" or not, but the ending still felt weak. Even if Brandy watched them all get "murdered" and everyone still wakes up the in the RV the next morning would have been better. We never see the tormentors actually do anything very violent, it's all implied by sounds off camera and through the characters' own hysteria.
Anyone know why Brandy just had a plain wooden casket while everyone else had pillows and what not? She's also the only one we see get buried.
While an ambiguous ending is fine in a lot of films, it falls flat when the whole rest of the movie is leading up to that moment and there's no real pay off. Something at the end was desperately needed to explain the tormentors' motivations, but I feel a negative of the found footage genre is the filmmakers thinking it's a "get out of jail free card" in terms of story-telling.
I know in real life not everything is coherently tied together, but this is a movie first and foremost and the attempted realism should be secondary if it hurts the movie. We are fully aware that what we are watching is a fake movie (and have done our part in overlooking less realistic aspects*), so don't suddenly treat it like genuine found footage just at the moment we are all desperate to make sense of an anti-climactic ending! It comes off as lazy and I would have rated it at least 3 stars higher with any kind of fitting ending.
*Silly side note: A lot of people are saying they would have left and gone home after they find the video of themselves sleeping or at least when Brandy was cornered in the rest room. I would have been gone before either of those things happened - the moment they started banging on my expensive rented RV! I wouldn't want to pay for any more damages when I bring it back haha!
Then again, I may not have gone at all if I had a friend who was outfitting the RV we'd be basically living in for a week with hidden cameras everywhere. Haha seriously, who does that?