Based on reading the article, apparently the family is not angry with the school, they just want all the kids, including their daughter, to be able to state their opinions in a constructive manner.
>Do we know anything else about this family? While this may be another awful example of liberal "tolerance," the UT experience shows that people in such situations often claim it is an overreaction to their reasonable message rather than the result of a pattern of behavior they have exhibited for a long time.
"You don't manage people. You manage things - people you lead" Adm. Grace Hopper
Pflugerville, between a Rock and a Weird Place