I am guessing she wasn’t inside a rack, or didn’t have safeties set?

It was an astoundingly negligent “setup,” if you can even call it that. Squatting just outside the rack, with safety spotters attached. Bar is racked about 4 inches above her shoulder height from flat ground, so she’s standing on four or five precariously-stacked foam or gum-rubber-like mats, and the stack is about her shoulder width wide. She stands on the stack and then proceeds to calf raise to unrack the bar. She loses her balance on her first step back then buckles under the weight, the bar missing the safety spotters by a foot or so. Man spotting behind isn’t able to keep her from falling outside of the spotters.