Healers are the lynchpin of the classic division of labor still at the core of D&D RPGs.
However, in higher reaper levels, even dedicated healers can become dependent on other players for healing. This should not be the case.
Players within a (static) party with a dedicated healer should not need to worry as much about feats, enhancements, gear, or twists that allow them to heal other players. Instead, each player should be able to focus more on their role to optimize team play.
One possible solution: have the Radiant Servant Cure Focus (T5) Enhancement reduce the reaper penalty for self-healing based on the number of cleric levels.