Based on personal knowledge, not only my own but that of my (now adult) children as well, I’d say if that’s all she complained about, then it’s actually one of the better schools for the safety and education of students…or, what is much more likely, she didn’t actually list all of the issues that in a similar situation but involving only adults would cause immediate firing and legal action.
In other words, I think it’s highly unlikely that she’s exaggerating or making stuff up. If anything, she’s probably only exposed the tip of the iceberg at that school.