I think you should always dodge. Not because it's the best course of action but because it helps avoid becoming complacent. "The healer will take care of it" is a bad habit to develop but you can safeguard against it by keeping up discipline. Unless you're some kind of gaming god, discipline can't be turned on or off like a faucet. It's something you need to keep up through application.
Not just for AoEs. For everything, really.
Not just for AoEs. For everything, really.