It does make you wonder. One of the only aircraft types in the world with a certified parachute system for moments like these and it wasn't used or didn't go off for them.
Wonder if they were busy trying to make it work or something and weren't looking below. Short of a black box we will probably never know.
I wonder if Cirrus are over their engine problems yet. Literally all of the 20's imported into OZ have had an engine rebuild or replacement (no joke). Seems Cirrus are happier to pay for the repairs than to modify the bracket that's causing the problems. Cirrus owners need to carefully check for the engine throwing metal. I've seen problems as low as 500 hours.