[chrisseaton]

> You don't need to preserve night vision stuck in a sealed metal box without windows.

You do - because you may need to leave that box in a hurry to either evacuate the ship or to fight. Why else do you think the military do it?

[bunderbunder]

That's a ceteris paribus line of reasoning, though.

If we assume, for the sake of argument, that red light inhibits alertness while blue light promotes it, then that might change the calculus to, "maximizing night vision preservation isn't as important as making sure that we don't end up needing it in the first place."

[jonhendry18]

Presumably the people stationed in that part of the ship don't often get up to fight. Some may be at weapon stations in that control room, so they fight best right there. Other crew would be fighting with small arms if necessary.