Wow. Back in the Dark Ages (high school in the early 1970s), on rainy days in northern California, the boys would gather in the gym for PE and play "Warball," a version of Dodgeball with a couple of dozen volleyballs in play at the same time. I saw multiple guys take high-speed shots to the head because your peripheral vision can only scan so far. The worst, by far, was getting hit with a partially-inflated one, because instead of a glancing blow, it would wrap around your skin and give you something akin to a rug burn.
After a couple of games of Warball, I had some idea of what it was like in the trenches during WWI in France. It wasn't a matter of skill or reaction time, only luck, that you didn't catch one in the eye socket.
The speed of elite high school and college women's (and men's, for that matter) volleyball is scary dangerous. I hope she lives a normal, healthy life.