Indeed. In our terminally online world, throw away remarks that express frustration, and were never intended to be taken literally, suddenly get repackaged into declarations of policy to try to generate outrage.
People seem to forget that language is full of hyperbole. "I'd like to throttle him", "I could slap you right now", "I'll swing for him", "I tell you what I would like to do...", etc., which are expressions of anger or frustration, not genuine proposals to harm or kill people.
To take these remarks and suggest that they are genuine intentions is simply ridiculous.
Good people can say daft things sometimes, especially if they are passionate about a subject. If you want to make pathological control of ones own language a necessity for holding public office, I do not believe you will end up with the best people for the job. I think you will get the exact opposite.