I think your daughter did exactly what she was supposed to do. Sadly the camp did not. Without "Mongolian Blue Spots" noted on a medical form prior to admission, I believe the camp is legally bound to report the possible abuse to the authorities for investigation.
I am not saying the child is abused just that I believe, based on some prior trainings that I have had with working with children, that it is a legal requirement.
Definitely puts your daughter in an awkward situation and she should never have been judged at a lower level for expressing her concern. What about if she comes across another child who IS being abused and your daughter now hesitates to report a concern out of fear of retaliation on her performance review.
Very sad and says a lot about the camp she where she is working. Not a place I would want my child. More concern over CYA (covering your own a$$ than protecting a child).
Best of luck to you. I would probably rip the camp director a new one if it were my child working there. And then of course my daughter would be embarrased by her momma yet again