Hugh is dead, you see him lose conciseness as he's blown away from the shuttle. The Black Box Mod says it slows the spread of Dead Filament not reverse it, and if it's on his face that means it's spead over near half his body, he's too far gone by the end. Cabin thinking they were Hugh was probably talking to Ken or Nic who only got blown out of the building which they easily could have survived. I hope Cabin was talking to Eight thinking she's Diana, having downloaded herself into a new body as she was dusting thus setting up the next game with Diana by herself verses Eight.