Blizzard almost certainly has their own data sources, and are also very aware their hooks aren’t working properly.
Rogue and Hunter combat logs are bugged with Augvokers. They aren’t really top DPS, or at least not to that degree.
Does ret look middle to you? And yea, it got recently nerfed.
It does not, Again maybe these charts are skewed a bit messed up but nerfing middle (or even bottom tier classes) makes no sense. What? Are they to strong in pvp? Tell that to the rogue who stealth pops out stab stab vanish stun stab kills you within 2.5 second blizzard!