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Sudden panic stop, and tore the Caliper bolts off on 2018 Model X

Something happened to me yesterday. I was driving at a low rate of speed in crowded traffic, perhaps 10-15 mph in the rain, and the car in front of me unexpectedly slowed and stopped. I slammed on the brakes and easily stopped but heard a popping noise from the front. When I started again, there was a light grinding scraping noise from the left front driver's wheel that was really loud at low speeds but decreased while going a little faster. Scraping was worse with right turns, went away with left turns, and seemed to come and go. I drove it a little yesterday and today but because I had heard about problems with suspension bolts failing in the early MXs, I just dropped in to the Dublin Service Center and presented myself as an "unsafe to drive" issue. They immediately took the car in (while I went with my girlfriend to pick up my hybrid SUV at Ford after a starting problem) and by the time I got back, I got a call that they verified the caliper brake bolts had broken and were replaced:

Concern: Customer States: Yesterday an emergency stop occurred by slamming on the brakes to avoid an accident and now when turning the wheel left a grinding type noise can be heard.
Technician verified grinding brake noise. Secured Left front Caliper with 2 new bolts and torqued to 120 nm. Road tested and noise is gone. Reviewed History and no brake work that I see done here. The Caliper and edge of rotor have signs of cosmetic scaping only . See pics.

Correction: General Diagnosis
Correction: No Labor Performed - Part Replaced
Parts Replaced or Added
Part Quantity BOLT,TE,M12x45,STL[109],ZNFL[BLCK](1088968-00-B) 2.0

The car is good to drive now, they fixed it within a few hours, I thanked them for the good service. I also filed a report with the National Highway and Traffic Safety Administration.

Have you ever seen this? Wonder if I should have the other brake calipers checked?

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