Yeah, quick-releases have improved a lot in the last few years, but wind is still a pretty chaotic thing. Still, we've had about ten drownings here in the last year and only one was a kiter, (Unknown... found floating.) and we have more nuclear winds than anywhere else. In fact, there have been more deaths from paddle-boarding (!) than kiting.
I'm sure one could design some sort of weak link into the chicken loop that would be broken by a sudden shock. In fact... I may just do that, or get someone to do it for me. (The North and Slingshot factories are both local.)
But seriously... there are little kids out kiting - amazing what sort of acrobatics you can get away with when you only weigh 110 pounds.
But that doesn't excuse wearing jammies over a wetsuit. And I don't buy the wind chill argument either. Dive suits create HUGE evaporative cooling (many days I've been stripping down to my speedo in a snow storm, then diving into the engine room to make love to the diesels) but surface-sports suits have wind resistant panels.