FCC rules are a throwback, and so are puritan sensibilities about language. What’s acceptable/not-acceptable is both contextual and ever changing. The FCC sets rules for broadcast content, and guess what? It’s contextual. Some things deemed unacceptable during times when children might be watching suddenly become acceptable at other times. That aside, what this young man did will not be broadcast; the only way you can be offended by it is if you go looking for it. Why would you go looking for things to offend you?
Just a few decades ago the word “bloody” when used as an adverb in British English was considered incredibly offensive. Nowadays, no one bats an eye. Much the same thing is happening here in America when it comes to the “F” word. I suspect in a few short decades it will be just another adverb, used by schoolchildren everywhere.