I don't know... but it makes sense, doesn't it? We weren't supposed to see what Sentience ended up showing us and I doubt they thought we'd find out about the body storage-
[ And then something clicks. The body storage. Everyone who's ever been here, but isn't anymore. Add to that the deeply sleeping bodies of everyone who was in the dome but didn't join Sentience's coup. Suddenly blacking out, only to come to in a different place. The sluggish sensations, skin tingling as if after a long sleep...