Shower on a reduced reuse timer can prove to be a nice benefit, especially considering the amount of multi mob encounters in TSO, with Avatars being no exception. Having shower come back up that often thru an encounter like that can drive up your parse if you can hit those large amounts of adds with Shower that often

. That was my reasoning, i cant speak for Safanah. Also not to mention, the end line INT ability is a pain in the ass to try and recast on avatars and any other mob that keeps your ass stunned or stifled for more then half the fight.