I went back and reread the article and it mentions nothing about her getting arrested for brandishing OR threating another person. On top of that it supports her right to self-defense by saying she went to the police station and looked through mug shots later that evening
And that is precisely why the term "fear" is not used in the statutes in most states.
9) that the person who discharged the firearm had a reasonable fear
of bodily injury to the person or to another by a dangerous wild animal as defined by Section 822.101, Health and Safety Code.