i think i see where you arent understanding (at least what im saying). i dont think a blue moon needs an orange to be good, i just think it tastes better with it. its like a garnish.
corona, on the other hand, pretty much needs a lime to taste decent, because the lime is better than the shitty ingredients they use.
its like, i grill some steak, and i decide to add some sauce to it. would the steak still taste good w/o the sauce? yes! but would it taste better with some sauce? yes!