You are assuming that hinkley intended to control their emotions and that cursing wasn't just a rhetorical thing in this instance.
There clearly is a link between words and emotions. But this link - and even more so the link between emotions and actions - is very complex.
Too many fears are based on the assumption of a rather more reductionist and mechanistic sort of link where no one has any control over anything. That's not realistic and our legal system contradicts this assumption.
