That makes a lot more sense, i mean if R'hllor is real and has the power of resurrection then Stannis's army would crush everyone with ease and that doesn't make for much of an interesting story does it?
“The larger the group, the more toxic, the more of your beauty as an individual you have to surrender for the sake of group thought. And when you suspend your individual beauty you also give up a lot of your humanity. You will do things in the name of a group that you would never do on your own. Injuring, hurting, killing, drinking are all part of it, because you've lost your identity, because you now owe your allegiance to this thing that's bigger than you are and that controls you.” - George Carlin
