Dark themes suck hoop. I aint some basement dwelling saddo hunched over a monitor in a badly lit room; so I don't see why I have to use something that exists for them...
(I doubt that much thought went into it, probably just a case of "dark theme = trendy" -_-)
That said, it makes things run a ton quicker than the old theme, so I'm putting up with the tacky ass dark shite just for that.