Ret is the only class not balanced around curse of elements and rogue poison debuff. So well everyone else is balanced around this 31% damage debuff ret and shockadin isn’t. Also ret can now apply kings and horn of lorderon on themselves. This is like a paladin applying kings and a stronger version of might on themselves, at the same time. This hasn’t been possible in any version of wow.
So if I was a dev I would nerf all paladin holy damage 24% across the board and make those debuffs apply to holy damage like they did before. I would also not allow a paladin to cast kings and horn of lorderon at the same time on themselves. That would bring Ret/shockadin in line with everyone else.