Maybe she’s like my daughter and gets tripped up (pun intended) by mere simplicity. Mine can do the most difficult gymnastics routines and tumbling passes but faceplants at least 10 times a day just WALKING. Not even chewing gum at the same time, either! :O
That is the case with dancers as well. I personally think that the more flexible among us are more prone to this type of thing. They get labeled clumsy, but it is a matter of being so much more flexible than the rest of us, they can do things to themselves that the less flexible just don't do.
My daughter is a ballet dancer (who just became a trainee at a ballet company this fall) and they are known for this very same problem. They are clumsy. And my hubby is the same. But he isn't a dancer at all. But he still managed to sprain both ankles once in a parking lot.
Stuff just happens.