This may be a thread hijack, and if so I apologise.
Over the last 2 years I have had 2 work friend hobbyist have unfortunate workshop accidents.
One of them let his hand drop down onto an unprotected spinning table saw blade and lost a few fingers ... which a SawStop would have prevented.
Another managed to recently run his thumb through an unprotected inverted router bit.
And no-one's thought of a "RouterStop" yet.
Seems as if using the proper protective guards and proper technique is the first step to safety.
Also seems as if you're safer if the sharp, spinning parts are pointing down rather than up