I wouldn't say she "provoked" him. Now that's a strong word IMO.
Maybe she was simply in her feelings and felt that she should not have been removed from the class.
She is a child. This is how children behave sometimes.
But I think more parents should let their kids know the importance of following instruction of adults who are in charge, whether it be in the school, the church, wherever.
My best friend is a black woman and has a son. He's only 11, but she's already getting him ready for real life as a black man in America...little by little. Upon request, he can recite "yes sir, no sir", and other replies she's taught him to give if ever unnecessarily stopped by a pale demon.
She's more concerned about her son's safety than she is him being an activist. And her being a mother, I cannot blame her. Still not full proof, mess could still go down regardless. But The less excuses that are available, the harder time they'll have explaining their actions.