Threat management: Yes
Tank stances: No

I liked aggro combos. It gave another skill branch, additional animations, and the ability to mix up openers depending on what you were fighting. Granted, my tanking experience is solely with DRK, but the simplification of aggro management has taken away a good portion of engagement with enemies. However, I do get that modern tanks need to focus on mitigating damage as much as possible, and I would surmise that the current status of tanks is more meta driven than dev. When players basically say, "Eff tank stance, mas deeps!" all I can say is that I'm not surprised.