Actually, I am factoring in what happened on Angel. (See: Gunn, Gavin, etc.) Firefly is a different case, as it's a different universe; but there, yet again, the sole black male dies, and for all the Chinese spoken there was a decided lack of visible Chinese characters. The whole point is that things can reflect prejudice without the author being aware of either their prejudices or the way they're being expressed in the work.

Everyone has a set of assumptions they're working with that they're not necessarily aware of, and that's okay. It doesn't mean we think (or I do, at least) that Joss is a bad person. But it does mean I want him to learn, and grow, and do fewer problematic things in the future (I'm a bit heartened, in fact, but the slightly more diverse-looking cast of Dollhouse).