Prudent defense or not, no law should be written in the first place so as to criminalize a joke YouTube video under its letter. Nor should citizens (or subjects in this case) be compelled to explore the necessities of free expression as a criminal defense for making a simple joke.

Thankfully in the US we have already codified free speech into law. Unfortunately there are still many who do not consider the liberties protected by the Bill of Rights to be a settled issue.