That's reassuring, although it does leave the other part of the problem open, i.e. the more you define an Exaltation by showing us things that it *isn't*, the more you hem it in to a narrower and narrower focus. If you, say, created an Exaltation themed around rebellion and fighting the power (ROW ROW FIGHT DA POWA), that means that now Solar characters can no longer be rebels because someone who would otherwise be a rebellious Solar would exalt as that new type instead. I know this isn't a perfect example, but it's the kind of thing I'm worried about.
Degrading the classic Exaltations to serve the new Exaltations would be a pretty dumb move!
happen, to elaborate your example, is that you'd have Chosen of Rebellion who serve to enable a particular mode of gameplay that wouldn't really be facilitated by any of the classic Exalted. Certainly, there'd be some overlapâ€”"rebellious" is too big a personality trait to constrain to any one hostâ€”but you might see something like, say, a Terrestrialish-level Exalt whose powers allow him to draw upon and embody the will of an oppressed people to act as an avatar of their liberation, to go with the first thing that comes to mind. While there's potential overlap in terms of character concept between that and a Solar revolutionary, it's pretty clear that the two of them would play very differently.