I'm not a writer so i have to disappoint you. But i think you got it all wrong anyway. My problem with Blizzards writing in this case is not the prosa, it's that they (ImO) had a beloved character and a well known and up to that point peaceful faction act against their characterization just because they needed a hook for their dungeons and Vol'jin was the easy way.
Either way, you may like what Vol'jin did or not, i just wanted to say that it's not just a case of people wanting to see heroes die, at least in the case of Vol'jin i think i have a pretty good reason of wanting to see him dead or removed (or, my favorite, as a prisoner of the Zalandari ).