Here then are my carefully considered opinions on the subjects of safety systems, kiting accidents and tragic fatalities.
Firstly: kites do not kill people, squalls do not kill people, safety systems or lack thereof do not kill people. What kills people every time is immovable objects (usually man-made but also occasionally cliffs, trees and rocks) getting in the way of irresistible force (a kiter following an out of control kite for whatever reason). This is a very important distinction that I've found most kiters and other wowsers don't pick up on. Launching, landing or kiting in close proximity to man-made objects is potentially life-threatening and unfortunately for many of us urban dwellers, an unavoidable reality of each session.
Virtually every scenario that results in serious injury or worse would not have the same outcome in an area surrounded in soft sand dunes or even better, cotton wool. Experienced kiters will have all gone through at least one terrifying incident on land when for a millisecond their kite has taken charge, they have been lofted into the air, usually backwards and realised in a blinding flash that all their so-called safety systems are worse than useless - their body is unable to react to the brain's urgent messages because they have lost all control, are fighting unimaginable G-forces and are flailing to keep their head up. Ninety nine times out of a hundred, by blind luck or the grace of God we get away unscathed. Twice, I haven't been so lucky and have taken big hits on man-made rock walls that are unfortunately a feature of where I kite everyday.
Fortunately these impacts haven't killed me outright and it is my experience that the first impact rarely does. In fact on both occasions, I bounced out of my un-shackled safety-less system and was left with significant injuries - but in my opinion far better off than if I had stayed along for the ride, enduring the secondary impacts that would have surely followed with escalating severity as my kite made it's way inland, merrily powering up from one side of the window to the other or locked into the spiral of death.
This is why I view all so-called safety systems with distrust. Obviously, I can see some benefits from all of them. Losing your expensive kite less is often a possible advantage but possibly losing your life is a bigger issue to me.
My second point is: when shit happens - most of the time, most of us get away with it. When shit happens and you are a few metres upwind of walls, rocks, breakwaters, cars, powerlines, houses or boats - there is a very good chance you will hit them with force that in your wildest nightmares you would never have conceived were possible. No-one ever has time to pull their fancy snap-shackles when their feet are off the ground. Their only hope then is to survive the first impact and take advantage of the momentary slack lines and eject one way or the other. If you're in shock and wounded this becomes a hell of a lot harder - if you're unconscious and shackled impossible. That's how people get killed.
Remember the first point: It doesn't matter how or why you come into contact with them - hard things kill - generally not with the first impact but they have a cumulative effect on rag-dolled kiters.
That's why we all need to consider everyday more than anything else, WHERE we kite. That's why I laugh when people spout off about safety systems, and knowing how to use them - when these very things and people's unfounded reliance on them can so easily be the nail in their coffin.
In a nut: Bad decisions, nasty squalls or gusts, crossed lines, collisions, rotten luck, retarded safety systems, primary or secondary impacts can all work together to ruin your day but always remember: HARD THINGS KILL!