If you look at the top savage parses, all tank damage is almost equal. Like PLD 35%/ WAR 35%/DRK 30%. WAR and DRK could use potency buffs to pull ahead but I don't think PLD is necessarily too OP as is. None of its utility specifically really guarantees it a spot, it just has more defensive things so you can play it safe. Intervention, cover, divine veil, clemency, hallowed, PoA, these are all just safety nets. WAR has self safety nets and PLD has party(or just the OT really) safety nets. DRK has both on a short CD...but I must admit it does seem somewhat lacking since it's literally just one skill and its not particularly OP unless used on itself.