The "if it saves just one child" problem is more of a problem when you try to force your solution and the associated costs onto other people. In a free market, where it's my own finger on the line. Well, I'd be very likely to buy a saw with this technology.

In my garage sits my grandfather's table saw. He was a pro woodworker. It's big, heavy, and runs on three-phase power. It runs like a champ, but scares the crap outta me. I use it, but am very, very careful.

Always respect your tools. Take care of them, and they will take care of you.