It has the reserves of engine power, but not a full separation of fuel and control systems.  For human spaceflight they want to see a backup system that is dissimilar and disconnected from the failing system.  So launch abort is a different rocket than that lifting the craft.  For chutes, that&#x27;s an extra chute stored in a different box.  For propulsive landing, that would need to be separate rockets using separate fuel tanks controlled by a separate control system.  Chutes will be lighter&#x2F;cheaper.