To clarify he said the average is 30 to 40 with pros reaching upward of 50 and 60. He is correct. To speculate that rogues main stat, dex (crit and dodge) will somehow go down after the expansion is just ridiculous. So warriors str and sorcs int will do the same? No.
It's always how everything applies in pvp. If everyone here bases everything on pvp then we all should all be able to agree that rogue was, is and will always be the top class. Based in part to the fact that as you can see, it's mostly rogues that influence the game via forums. I'm guessing this guy that posted is a warrior. Mages don't speak up because there's not many pro mages playing anymore. They all made rogues.