As part of a high school English class I wrote a semi-romantic poem about a female movie star; without my knowledge or consent my teacher called my mom. Mom wasn't angry but was more worried, devastated and upset than I'd ever seen her; I denied everything, went to my room and pondered what would be the least painful way to kill myself. Thankfully little Greta was too chicken to try anything, which is why grown Greta is here, writing this post.
If those educators were concerned about bullying they should have been monitoring the way that other students treated the kid and intervening when needed. Contacting the parent was not needed.