According to a witness to the crash, the airplane was pulled into the swamp by the chute, apparently causing further injury to the occupants. Whether or not this was actually the case, it raises a question: Does the CAPS (Cirrus Airframe Parachute System) have a means to disconnect the chute from the airframe after the airplane is on the ground? Of course, if such a capability were provided, the possibility of the introduction of other perils (failure modes) such as "premature chute canopy release", become a factor. We Humans have an extraordinary talent for snatching defeat from the jaws of victory, so I suppose it is possible that someone would activate a CAPS release (if such a thing existed) while still several hundred feet AGL. I guess it's all a matter of balancing the odds, or "Risk Management".