In MoP I would go to twitch and click on WoW (which was one of the top games on twitch at the time) and it would be page after page of people streaming arena and RBG.
This morning I go to twitch and click on WoW and there is barely anyone doing PvP, it's all heroic this and mythic that.
What caused this shift in who is streaming WoW on twitch / what type of gameplay they are streaming?