The couple of times I was at Yosemite I was looking out from Glacier Point and Yosemite Falls wondering how many people fall off these things every year.
There is really no way to make them “safe” and still accessible. I kept safe by keeping my fat behind far away from the edges. And that wasn’t always far enough to keep my stomach from puckering.
I’ve been up several times. Just a couple years ago even given that I avoid California but was visiting family. The bigger worry up there is getting struck by lightning.
May God have mercy on her and comfort those who mourn.