Many moments in the film are also distorted by static and other picture disruptions. In fact, some of the visual disturbances take away from the viewer's ability to follow the narrative and identify fully with the characters. There's indeed something a little distancing here. But again, that's the price for a found-footage film in these circumstances. Apollo 18 must seem like a real moon mission, and truthfully, it accomplishes that feat.
I suppose the most legitimate question about the film is: how did this footage get back to Earth? The only reasonable answer comes in the form of paranoia and conspiracy. On several occasions, Mission Control on Earth claims it knows exactly what's happening on the moon; meaning that Earth is somehow (mysteriously) receiving visual transmissions from the astronauts. Again, I don't necessarily see this omission as something that destroys the entire film, but rather a mystery.
Nighttime nurseries can only be explored so many times before ennui sets in, but the dimensions of space are, of course, limitless.