Simple question.
Oblivion also has a far more
Oblivion also has a far more advanced weather and cloud system than Morrowind. If you don't like how it looks in vanilla there are a lot of texture replacers out there.
Oh, I know. I just think that
Oh, I know. I just think that original Morrowind night sky is on par with Skyrim and much better than Oblivion, but you're correct, with texture replacers you can do almost anything. Just downloaded one for night sky.

Oblivion. It's an engine
Oblivion. It's an engine thing, I'm not sure you can even change it in CS.