First let me state that I am not a Retribution Paladin, although I use it as an Offspec. But I care about the class I play and would rather give constructive feedback rather than blatant whining on the forums.
One possible solution I thought might increase both Ret's DPS as well as Prot's threat generation (although I don't feel Protection has any problems at the moment) is to swap Judgements of the Just to Tier 4 and move Reckoning up to Tier 2 in our Talent Tree, whilst changing the mechanic of Reckoning to proc off of both Block and Melee hits.
Of course this means Reckoning would most likely be up constantly for Protection Paladins and only sometimes for Retribution Paladins, since they cannot block. This will also increase Retribution's Hand of Light Mastery mechanic.
Let me know what you think, but please keep the feedback constructive.
PS; Please fix Holy Wrath to not break CC and not hit critters.