Without Incite Emotion it is pretty weak for a power.
Feeding Touch basically sets you up for a situation where success using the Incite Emotion power begets more success (if you succeeded once, now you are rolling with an extra +1).
Taste of Death is basically a "Ding, round 2!" With Inhuman Recovery, this ability even lets you get back a Moderate Physical Consequence (since all consequences are downgraded by 1 for recovery period). I assume the unstated part of Taste of Death is that it removes all Hunger Consequences.
But since Taste of Death doesn't actually give a way to emotionally attack, it also requires Incite Emotion.
Emotional Vampire should probably have a must of "Incite Emotion" just to ease confusion.