I think there is a study on this somewhere. I will try and find it.
Maxred I would not say this was a study, more Paul Bertorelli's ruminations and personal opinions if the chute add's a false confidence.
Plenty of Pilots are killed for bad decision making in planes with or without BRS and the situation the author quotes is one of those.
The sad thing about the BRS in a Cirrus is that the vast majority of fatal's occur with a perfectly good chute intact, the pilot simply is not trained in its use, forgets to use it or leaves it to late.
What ever the guys error in this particular situation he did what he was trained to do, at a critical time and likely saved his life and that of his innocent passenger.
It sounds like Pilot Error.