That's weird, cause on my realm I've been seeing numerous guilds looking to add Ret Palys to their lineup for Wrath content.
As to the OP thing: yea, I could definitely see it. I pretty much only did any real PvP with my Enhancement Shaman. I'd go after Ret Palys, even ones with obviously superior gear, cause they were so laughable. If they got lucky with a SoC crit + Crusader Strike crit, yea they could beat me, but if not, it was generally no contest: and my PvP gear isn't even all that great (2 pieces Merc, Glad. weapons, around 350-375 resil).
Since the patch though they're as bad as a Rogue. I would find myself from full to dead in the space of 1 Hammer of Justice. Occasionally I'd get my Shamanistic Rage off before being stunned, and I'd STILL get squashed like a bug.
On the flip side, playing as a Ret: my Paladin has one piece of PvP gear, a ring, so that's like 22 resil. The rest of my Ret gear is heroic/kara stuff, a couple are even blues, nothing constituting uber in any way, shape, or form. I did some PvP pre-patch as Ret, and I never went anywhere by myself for the simple fact I could not kill anything 1 on 1 (except another Ret Paly). I got lucky one time with SoC/white crit/Crusader Strike crit all back to back, and more or less "1 shot" a Rogue, but that's about it.
Specced Ret post patch to see what all the fuss was about, same gear as before, and OMG! I could actually kill stuff! By myself!! Not to mention I could live longer than before as well with DS and instant FoL. Getting the G.N.E.R.D Rage achievement was a piece of cake. I think it took 4 candies to get all 50 kills in a WSG match.
Tried back on my Shaman ... I used 4 candies and got 8 kills.
It sucks that Ret had to get nerfed back down, but seriously, Ret's still far better off then before 3.0.2. Now, they could go too far on the nerfs, and if so I would hope they bring Ret back up, but nerfing Ret back down a bit was definitely needed from everything I have seen thus far.