"Yet these actions did not arouse such anger in Power. Why?"
Power has a sick mind. She even wrote a review of Chomsky's "Hegemony or Survival" and ignored the fact that he demolishes the notions she holds about Kosovo (see pages 54-55 of "Hegemony or Survival")
She serves powerful interests and she is in denial, what is extremely irritating is for her to review his book and ignore the fact that Chomsky demolishes a central tenet of her world view concerning Kosovo.
Dimitri Oram writes in his article Whitewashing Western Intervention, "Ms. Power presents a warped and decontextualized version of events, relying largely on the say-so of of various interventionists and hawkish US officials, omitting key facts and distorting others."
She is a sick woman, Obama is a monster too.