Obama provide a pardon to protect her from foreign prosecution. Trump may be putting in place wars on too many foreign fronts for her to defend.
Obama CAN’T provide...
Obama cannot pardon her for crimes committed in other nations. He could only offer her asylum or sanctuary which Trump could resend. Obama has no power over Hati.
As to it being cowardly to let other nations try her consider that it may end up being a sort of plea bargain. Either fess up and go to a comfy prison here or we send you there and let them deal with you.