Slightly against my better judgment (good link btw) I'm going to post again...
I don't think there's anything novel or "contrived" about assuming the phrase "sexual assault" implies some form of illegal gratuitous behaviour with a sexual motivation, regardless of what jurisdiction you live in (sexual assault is a crime where I live, and the Ohio state government appears to use the term frequently with respect to supporting abuse victims). I also interpreted the author's repetition of the phrase in conjunction with other carefully selected terms like "incident" as a conscious attempt to draw parallels between her experience and that of the victims of sex crimes.
I don't doubt that she's drawing those parallels because she's sincerely upset, but I do think there's a dangerous line being crossed when we start equivocating intentional assaults and incidental contact, and leave it up to the accuser to define whether conduct was abusive or sexual. I also think it would be doing a disservice to people who've been wilfully abused for others' gratification to suggest that their treatment is akin to what some people experience going through airport security. I hope that clarifies the original intent of my comments.