Let me recap the events of the last few weeks in order to make my point.
1) All hybrids received a blanket nerf to PvP power, causing it to only affect their main role, leading to a roughly 30% nerf to healing for all off-healers who currently have full conquest gear.
2) While the the community was mainly complaining about Shadow Priests (and only when combined with ridiculously OP dps like Mages) and a few other specs, all off-healers were drastically nerfed, including Enhancement Shamans, Ret Paladins and other specs that barely anyone was complaining about.
3) The ill-conceived nerfs hit Spriest the least, since the problem all along was their ability to spam heals, not their ability to throw out strong heals once in a while like an Enhance Shaman on Ret Pally.
4) Less than a week after the PvP Power nerf, Divine Star is drastically buffed, restoring the worst offender (Shadow) to almost where it was before the nerf.
To put this ability in context for people who are not familiar with its healing, Divine Star now instantly heals the Spriest for almost as much as a Ret Paladin's 3HP Word of Glory, and a few seconds later does so again when it returns. Any allies in it's path also receive almost as much healing as two WoGs. The ability is instant, on a short 15 sec, cooldown, costs a reasonable amount of mana, can break stealthies out, and even does some damage.
To clarify, I don't want Shadow nerfed, I'm just pointing out these ridiculous happenings; I even play with a Spriest partner, but even he agrees that this is an absurd sequence of events, in fact pretty much any serious PvPer does. Numerous innocent bystanders were nerfed, while the worst offender is first to be compensated for the lost healing (perhaps not intentionally or fully, but a silly situation still).