I feel horrible for what happened to her, but considering that she is an experienced, professional acrobat I wonder why she didn’t think of that herself. I would file this under the same category as tourists on ATVs in the Philippines or on jet-skis in Thailand. Bad things happen in countries without safety culture.
Actually it’s pretty negligent of her not have proper insurance, especially as this is her career and her livelihood depends on it. She is very lucky to have friends and supporters to chip in.
I hope she gets well soon and can continue her career. But this should serve as a warning to everyone 1) not to trust promises of your client/employer regarding insurance coverage without checking yourself 2) blindly relying on equipment in certain countries.