There is no class in this game that requires skill in that case, because it's all about getting used to your job.
Once you're past that point everything is piss easy because it's all about memorizing your rotation, aye there is a priority system in this game Ninjas have it too but in the end it's still a set rotiation, the priority only comes when you mess it up and/or you're disonnected for a short time in a fight.
Even then since all fights are scriptet you'll have most of the time a fixed rotation because you know exactly when a mechanic happens.
Ninja is easy, Monk is easy, Dragoon is easy. Melee DPS in a nutshell, yet only few can actually play them well.
Back to topic, should Dragoon do more damage than the other melees?
No.
I'm all for a lil'bit more utility but they hardly deserve a futher buff in their DPS as they are fine where they are.
Dragoons have the highest survibility by far from all dps now, just to toss in that lil something.
