Yeah, that's right. Daedra are bringers of "change" whereas Aedra represent a stable society. Daedra are often dangerous because they want to reshape the world in their image. It would be interesting to to do more in-depth quests for the Aedra though, if only so we got a better idea of who or what they are. They seem quite mysterious and absent, even though their power is in evidence in the games.