Rets shouldn't be WoGing themselves unless they would 100% definately die unless they didn't. WoG resets your swing timer, meaning casting it is a MASSIVE DPS loss.
To quote Exemplar of EJ
Hybrids cannot perform every task well simultaneously, instead they can pick which thing (DPS/Heal/Tank) before a pull and do that one thing well. Raid leaders expecting otherwise have an incorrect paradigm and are detrimentally impacting the overall performance of their own raids.
Dead DPS is no DPS, true, but equally healing people is the job of the raid healers, not the DPS. You bring rets for DPS and the buffs they have, you do not bring them as some strange low damage but self reliant dps class that needs no attention from your healers.
MORE CHANGES THOUGH (back on topic)
Seal of Truth is now applied (and therefore stacked) by all our special attacks as well as white swings. Words simply cannot describe what an incredible change this is. No longer will we be cheesed on figts with air phase or protracted periods of target swapping - now we can use judgement to refresh SoT from afar, and even if it does fall off, we don't have to spend 15-20 seconds ramping up again - the problem now is that any fight with protracted target swapping forces almost constant DPS ramp up for ret, with very little time actually going at full swing 0 this changes that, well done Blizzard.