I have a friend who owns a Cirrus. The lower height limit for parachute deployment is 800 feet, though it has been deployed as low as 400 feet and was survived. There has never been a fatality when the shute has been deployed, and the system has saved 89 lives where the plane would have otherwise crashed.
I think the key would be to recognise early when deployment is required as it would be no use to think of it when you are already at treetop height.
Word has it that this crash was 100% caused by pilot error.

