Now, I get it. People who don't like MoP are "though guys".
You know that those "negative-emotion smoke-monsters" comes from an old god's corruption ? Why would Yogg's corruption be more believable than the one from Y'Shaarj ? Pretty sure going mad/bad guy because of your "emotions" overflowing (Y'Shaarj) is better than going mad/bad guy because... CORRUPTION AND MIND CONTROL <- because this is cliché and is just like "whatever".