People aren't complaining about it because it isn't a big deal. It's just a minor example of poor web design.
It's an example of what is, in your opinion, poor web design. You keep talking as if there is an objective truth to the situation and you are the bearer of it. If anything, this is just you looking for things wrong with the game before you even play it (and failing to do so).
Indeed, which is why orange was chosen.
I find the orange HUD harder to read than the brighter blue HUDs in SC. Monitors in general are bright objects. If this were an actual spaceship, I'd probably choose red or orange, but since this is actually a backlit LCD monitor visualizing a spaceship, blue is the better option.