I read your story... and I sympathize with what happened but I'm not going to put a whole lot of stock in the safety ravings of a guy who was highmarking in the dark not wearing a beacon. Maybe you have learned, but talk about "asking for it"....
I read it too, I think he's learned. I thought it was interesting that he mentioned not having time to activate the thing even if he'd had one, Seems like it's usually the cornice you're in that triggers one. I've wondered if I would pull the ring or pinch the throttle if it was behind me. A lot of pilots have augered parachute equipped planes into the ground, ya if they'd pulled the handle they'd probably be alive but instinct was to try to gain control.