An example of "two morons don't equal one rational person." Assuming that the account is accurate (a very big assumption), the captain shouldn't have diverted. However, the attempt by the mother to make the airplane child-safe (in her opinion) is ridiculous. I'm sure she's the kind of parent who, when people object to her children's behavior, says, "If you can't tolerate all kinds of people, fly public!" Airlines do edit films, and this one was rated PG-13. If she thinks it's inappropriate for her children, fly another airline or charter a private jet. I couldn't care less what she thinks is or is not appropriate for her children.
I am very curious just how much of a ruckus she caused over this -- perhaps there was only one moron after all.