The twitter discussion about Rogues just seems like more of the same to me, saying yes it is low, yes we screwed up, yes it is not fun to play. But at the same time offering no solutions or even ideas or even anything close to showing that they are thinking about an overhaul at all.
Saying that rogues have always been low and that the current rock bottom representation of rogues cannot be due to MoPs disastrous handling of rogues and the total homogeneity of all three specs in pve.
They have admitted they made mistakes in the PAST, but it has been a long time since the launch of LK or Cata, and nothing has been done.
We may well have been low since WotLK, but there has been a colossal decline in rogue pop, that joystiq article shows as much in its data, but he just says
"Check out the whole discussion. Rogue pop has been low since LK. That suggests it isn't recent PvP or talent changes."
They just seem unable to admit that MoP is the anti-rogue expac, its like admitting they dropped the ball in MoP will harm them in some way.