Well, that might be the case if it was only a single incident of swearing in class, but in some schools the discipline is so lacking that some of the kids actually take control of the class by swearing and saying gross things in class that offend everyone. For instance when they ask to go to the restroom, they describe everything that they plan to do in the restroom and then start an argument if if the teacher tries to censor their speech.
I agree that discipline is key to a successful school. Were the parents notified? Was the student expected to do a detention first? My point is that some liberals can use this philosophy for other things other than cussing. What my son’s high school is seeing are student’s challenging liberal views openly. The kid’s are questioning global warming in science, anti-American sentiment in history, anti-God sentiment in science etc... What frightens me is the concept that this can be very easily used to control/maintain indoctrination of liberal views without question.