Noone can, it's a limitation that cannot be fixed.
Please don't do this. He may or may not include a semi-functional radio in his builds, that's entirely up to him. I'd also love to see it in cm10.1 but he has to decide whether fm radio is good to go or not.
Well then some app hold a wakelock that keeps the phone awake. If the battery screen doesn't point at a specific app, you'll need to go through your list, and find out which is causing the drain. I can tell you, it's not the os itself but one of your apps.
I think a lot more apps have disabled settings, not just s2e. While the blue looks awesome, the light blob makes the whole thing hard to read. Maybe you could try modifying the disabled preference color, then.
And I also think that this should be done as a standalone theme for the theme engine if possible.