Remember how much flack Thrall received for handing over the position of Warchief to Garrosh? Many people blamed Thrall by association for all the decisions and actions Garrosh made/took. Well, how come Vol'jin doesn't receive much criticism for handing the position to Sylvanas? I am fully aware that Vol'jin is dead, and therefore there is less sense in actively accusing him, but still, surely his legacy is tarnished badly by giving the title to the Dark Lady? Just what in God's name compelled Vol'jin to choose Sylvanas as his successor? Because some stupid spirits whispered her name? Wouldn't be surprised if the whispers came from an old god disguised as a revered troll spirit.