On a side note one shop I worked in a guy cut 2 fingers and his thumb off while using the stock guard on a unisaw.
Stupid is stupid. There is no piece of equipment, or gadgetry that will prevent somebody from hurting themselves if they have their heads in the up and locked position.
A shop I used to work at, there was a dude who removed, (I think), three fingers on a three head moulder. You couldn't even see the heads. They were gone, buried, inaccesible without opening the hood. Had you asked me that morning how you hurt yourself on that piece of equipment I would've said it required a blindfold, and you running straight at it at top speed. But, he managed to stick his hand in between a door that was being fed into the moulder and the conveyor. (this moulder cut the edge detail and sanded it in one pass) He removed his digits via crushing them. Hope he enjoys buying flip top containers vs. jars the rest of his life. Schmuck....
There was a thread on a the other forum some years ago about the Sawstop, and how having the system armed didn't change the way people ran the saw. They compared it to wearing a seatbelt and how it doesn't effect their driving habits. I call baloney on that. Simply because if you push the topic in the opposite direction it certainly has an affect. When I ride a motorcycle, and I run a few blocks to the post office wearing shorts, a t-shirt and flip flops, I'm mega careful. The opposite of that is when I used to do track days, full leathers, helmet, and an ambulance on standby, I pushed physics as hard as I could. Being stupid, not knowing your limitations, or not knowing the material you are working with can all lead to having your wife open the mayonaise jar the rest of your days when working with sharp rotating anything. Sometimes you need to identify a piece of wood half way through a cut as being nothing more than filler for the landfill and pull it out of the blade part way through. Sometimes you have to know that that little piece of scrap you want to cut just isn't worth the risk. Wood is cheap.
There's two approaches to safety. Either you make it so the lowest common denominator
can not hurt themselves, or, you make it require the utmost in attentiveness because screwing up will in any form will result in a failure you may not want to deal with. Ask any pilot what the cost is of not paying attention. You, and however many souls on board end up a grease spot in a field somewhere if he doesn't do it exactly correct.
You might think I'm casual, or dismissive about safety, but I promise you that isn't true. This is really the only job I've ever known and I try my best to be hyper aware, and let muscle memory take care of things. But, those two things that really only come from experience. I might be in the same camp as others if I did woodworking casually or for fun, instead of 50+ every week. Most of the gadgets and safety equipment becomes a hinderance or give people to much confidence in my eyes. I would never, ever, ever trust a brake or anything of that nature to keep me counting to ten without taking off my shoes.