PvP is tough because if you visit every class forum, you'll find a long list of abilities that the class *must have* in order to be PvP competitive, followed by the statement of fact that this class is getting destroyed in PvP.
Now if you ignore the Retadins and Unholy DKs who are probably broken somehow, who is winning all of these fights that everyone is losing?
To use just one example from the list: Do warriors *need* Piercing Howl to be viable? I'm not sure. It's a pretty good ability considering how many enemies it can affect. It is available in a fairly early yalent, and even if you skip it, you have an alternative: Hamstring usually is the snare by which all others are compared.
In PvE we can do a lot of tests to try and figure out bugs and generate our own numbers. It's a lot harder for PvP because you just have to play a million bouts and compare to videos and antecdotal information people post online. We think we know what is going on, but it's hard to get a reaity check on it like we do with PvE. (Source)
This isn't the first time that GC has referred to Ret being 'broken'. "Echoes of Doom" takes on menacing overtones.
On a side note, if there's to be a new 3.0.2 PTR/Beta build before 3.0 goes live we can probably expect it later today.