It was comforting
The rebuttals to his design are basically just "every room needs a window", without any real justification. Do you think he didn't think of that? That he just forgot to put windows in?
My dorm at college had windows, and they were entirely worthless. There were 2 windows, 2'x6', frosted glass, and they could open about 3". I don't think they added much to the room
Nah, looking at the floor plans, he was just optimizing for cost at the expense of user experience.
To rebut your anecdata with my own: My dorm rooms at college had large 5' x 4' windows that opened. The unlimited fresh air and view over the campus helped me keep my sanity while studying for a 4-year engineering degree. A windowless room would have driven me stark raving mad in the first year.
I think Munger should build a dorm room for himself that doesn't have windows and live in it for a few years before deciding that other people don't need them.
Whether he thought of it or not, bedrooms without windows are unsafe because in a fire you're trapped. Safety regulations are written in blood.
TBD, apparently, is an alternative source of ~$1B:
> Estimated Budget: The projected construction budget for Phases 1 and 2 of the Project is $600M – $750M.