Paladins have been lacking in the identity department since the beginning. SE doesn't know what to do with the job, and so they haven't been able to flesh it out. Right now, it is the most mechanically simple job in the game, and while that does make it "approachable," it also makes it kinda boring. The worst part about this, too, is that because there is no defined identity, everyone has a different idea of what a paladin should be, which means the user base has no concensus as to how to fix it.