I was just thinking that maybe one way to fix the lack of dps could be giving Shield Swipe a 6 (?) seconds vulnerability debuff. It could solve the dps problem on PLD without buffing their own dps (specially while in Sword Oath, as Shield Swipe is ideally activated when tanking, thus in Shield Oath), give them a somewhat more used raid utility, and fixing Shield Swipe being lackluster at the moment (it was supposed to be our ultimate lvl 50 skill). It would also give some use to our shield (and to block), the defining trait of the PLD.
The only problem that I see with that is magic damage not being blocked, but oh well...