BRDs just have certain advantages that other classes don't have, but their hit per hit are lower than other classes. While a BRD is easy too play you also have to be good at it too. You have to make sure you don't eat your TP, when to apply songs, best times to use your damage boosts, keeping your DoTs up and sometimes position and AOE damage.

I'm not sure it's as face roll as people make it seem. While I agree it's easier.