I'd tend to agree but I don't think that really is the point....the point is, she submitted something for prior approval then chose (accidentally or on purpose) to change it. And while most of us agree that hell isn't a bad expletive, to some, it's worse than mutherfucker.....and just like politicians, when speaking in public you have to watch what you say.......
I disagree, you are treating this as if the submission and acceptance formed a contract. Treating a validictory speech as a contract and the changing of it in a minor fashion as a major breach is beyong stupid. Surely someone close to the situation has the brains to put this in context. Withholding her diploma is like killing a gnat with a sledgehammer.