I think when it comes down to it, a GM needs to determine if Morality is proper for the players/setting/desired experience. Morality is not going to work well or do much for an Edge of the Empire system where everyone is morally ambiguous anyway.
I'd like to try the system because what I see is a way to bring players closer in line with the players they've constructed. Player decisions have more of an impact under this mechanic than in Duty or Obligation.