Death and Life, in harmony.
I think he definitely uses the two powers as an equal power, such as the Cenarion druids use the Sun and the Moon. Perhaps it does not have to be the Sun and Moon in particular, as we see in this case, but rather a balance of nature, whatever the duality might be. Perhaps one day we might even see a group of druids use the Light and Shadow as a duality in place of the Sun and Moon.
Ahh but that’s all off-topic