This brings me back to Dead Space 2
I think it's a novel idea, even if I'm not sure about the game itself. I suspect there's more to what they show though. I mean, what scifi horror story doesn't have some remnant of the monsters left.
Also, it's another opportunity for some good environmental storytelling. You can find all the notes and visual stories from people who met their unfortunate end in the event you're cleaning up after.
I do think that they should have more characters with you though, could be a great opportunity for a lot of gallows humor, as freak out moments.