I think EW role quests were likely planned to be bigger and more involved in the overall story but had to be scaled down due to lack of time or ressources etc. Seeing how, for example, we catch a glimpse of Sigurdu and X'Rhun before those those questlines become available, I think they were supposed to make an appearance in those, regardless of your role (maybe something like "pick which city state you will go help") and in the end, after scaling it down they decided to tack on the role restriction to them, to encourage people levelling up all roles.
So while those questlines, by themselves, aren't bad (the ishgard and limsa one are rather good actually) they have nothing to do with our job or role.
