Why don't the various exalted have simple "proto excellencies" that work like the primordial excellencies(i.e. A broad list of things they can do, a short list of things they can never do, and one or two things they can always do)?

As an example: Solars are the heroes and villains of classical mythology. They run faster, jump higher, hit harder, and build better than anyone else. They were made to lead armies and nations in both war and peace. They can never espouse themes mortals cannot. They can always use the light and flames of The Sun.