Answer: Because architect Hannibal Lecter was out to get those space nazi mother fuckers and was sabotaging them from the start.
That was perfect.
It’s not just the plot hole of the flaw, “reactors need vents” would have answered that, but it explains why the first Death Star took like 20 years to build even though we saw it was half built at the end of ROTS then but the second Death Star took like 2 years.
It was because Hideo Kojimas Best Friend was fucking ruining their shit the first time, ordering the wrong screws, tripping over cables, spilling coffee on computers, accidentally hitting key engineers on he head with a 2-by-4 anything to delay the space nazis planet fucker.
Galen was the most brilliantly half-assed employee ever.