I am also wondering, now, if the "fragile space habitats" meme is a result of improper extrapolation from the sensitive, thoroughbred, handbuilt-specifically-to-task life support systems we've been using on space stations, etc., up to now.
'Cause Cydonia People's Air Plant #1 ain't gonna be like that in almost any particular, kinda like how a highly-tuned custom-built sports car engine is not a whole lot like a marine diesel power plant, or hell, a steam one.
@cerebrate The Cold Equations had a shuttle with a lower margin of safety than the Mercury capsule.
Sci-fi authors have been lowballing safety standards of the future for longer than manned space flight has been a reality.