Interesting wob! Part of the reason I started this topic. Because I feel a lot of Passion from Taravangian but not a lot of Hatred.
So could be part of the plan of Cultivation to steer the power away from destructive hatred. She is trying to cultivate the power into something a little more constructive like passion.
It may or may not work in the long run, but I think in the short run, when the vessel has not yet been fully saturated by the intent of the shard, it might work.