I honestly can't believe they haven't fixed this. It's been a problem since 5.4 launched and yet its still here. They haven't even addressed it with the new hotfix. Instead they decide to hotfix a sprint/burst of speed bug and completely ignore Ruthlessness.
And in case you don't play a Rogue or play a Rogue and still have no idea what I'm talking about let me get you up to speed. Basically, there's an unintended "bug" from Ruthlessness where your Rogue can essentially "Taunt" a targeted mob. Yes I mean literally Taunt a mob. How does this happen? After you kill an enemy that has left over combo points and target another enemy that's not in combat while using either Slice and Dice or Recuperate, you'll pull that enemy IF Ruthlessness procs. It doesn't happen to me all the time but its frequent enough that its a problem I can't ignore.
Now some people will tell me to shut up and claim that its not a big deal and that I should just untarget the mob. But to me it's an issue that shouldn't even exist. I really don't care that it's a very minor problem. I am getting absolutely sick of randomly pulling mobs on my Rogue and having to deal with these instant mad Tanks that act like 5 man dungeons today are something out of H HoR.
It's bad enough I play a Rogue. People literally just hate you for playing the class and its almost like they want you to do something wrong to have a reason to hate you. It's the same with DK, but at least DK is a bug free class.
The worst part of all of this is there's more bugs with this class that you the player are forced to adapt to. Shadow Dance bug is another good example of this. I can only imagine that since almost nobody plays this class, these problems are just left on the backburner and Blizzard just waits till next expansion to fix it.