"Tragedy always strikes when one least expects it. But to wait for a man to stand before striking him down seems almost crueler than dealing the fatal blow while he lies on the ground."
Now, you shouldn't be surprised that there is magical 'interference' at work here because on the one hand, we can pick up lifesigns so well we can identify the species of a lifeform from lightyears away, while they're hiding inside of an asteroid field—inside of an asteroid, no less? But detecting explosives within the asteroid field? Ha ha ha, not a chance. 'Interference' usually means 'from the writer'.
"But... this is a Moulin Rouge! review, we can't end on a happy note!"
"You're right, we need a sad ending for no reason other than we need a sad ending!"
"I wasn't expecting Ammon to clap us on the back and say "Great job kid, now let's go home," but it'd be better than what we got. As it is, all our work, all our effort invested into NWN2 as a game is undone in seconds because Obsidian wanted a 'tragic' ending. It is tragic, mind, but only for the player."
Seth Gecko: Yeah, those acts of God really stick it in and break it off, don't they?
Jacob Fuller: Yes, they do.
"You can do everything right and cheat death, and then be ruined by one false step."
—Michael Altman, Dead Space: Martyr