At the end of the day, it's really not hard to prevent table saw injuries. Use a riving knife, don't twist the wood and you'll pretty much never get a kickback. If something does go wrong you won't get injured if you keep your body out of the way. So don't stand directly behind the saw and use a push stick (I love my GRR-Ripper) so your fingers are never close to the blade. I'd guess the majority of woodworking injuries are due to people who know these rules but break them out of laziness or rushing. Table saws also aren't the only risk in a workshop. You can injure yourself just as easily on any other type of saw, jointer, planer, etc. It doesn't make sense for the CPSC to only require SawStop tech on table saws and putting it on every other tool would put the price of woodworking out of reach for most hobbyists.
From a quick Google search, 93% of table saw injuries are to the users' hands. The only actual deaths I could find were suicides. Yea it sucks to lose a finger but I'd argue that it's not the worse thing in the world. Pretty much everyone could still do their jobs minus one finger.
The one exception I would make is high school woodshop classes. Based on most teenagers lack of judgement, I think it does make sense to mandate that these woodshops only use saws with this technology. I'd be surprised if most school insurance policies don't already require it.