I'm sure the statue was unharmed. I'm also sure I would never allow any child under my care to do such a thing. It's not that bad; but it's not good, either.
There were no women in the field in Vietnam. The only US women in Vietnam were in the rear areas as nurses or Donut Dollies for the Red Cross. The very few women killed in those eight years were killed by long-range rocket fire by the NVA/VC.
If they wanted to honor the medical heroes in Vietnam, there should have been a statue that showed the heroic MEDEVAC pilots, the Corpsmen/Medics, and the surgeons - but they didn't. What we got was the fake poses in that statue. It's an insult.