Haven's always been a good writer, but this one is excellent, not just good.
Sorry about your misfortune. But she's right, nothing permanently bad happened.
Your story reminded me of a similar event I saw happen during daylight while Forrest and I were doing South Seas. Two Spaniards were what, 500 feet to the right of us on Sea of Dreams. We climbed near them for two days. They didn't speak English and we didn't speak Spanish so our communications consisted of waving hellos.
At about 1,500 feet up we both heard a scary/weird noise and looked right quickly. Both of their haulbags were airborne; airborne (like yours) on an overhanging wall. I've never been able to forget their impact: first they hit, then immediate concussion waves flew out - totally visible, reminding me of movie documentaries where bombs explode on impact.
Then there was a five second pause, total silence. Next we heard screaming, loud, angry screaming. Our gaze moved quickly to the two Spaniards; nose to nose they were screaming at each other, four hands gesticulating wildly. They must have screamed for ten minutes straight.