Except that no, japanese culture indicates that violence is wrong and that she should apologize for taking out her anger on their group. had she lashed out here she would actually be in more trouble than them for instigating it for putting the school and the other students in danger. Saotome knew that not only would the teachers likely be there soon, but that hanakos NON STUDENT (thats an important part) family and friends were somewhere around to mitigate any potential danger. Thus he makes hanako look good, raises her social standing in society, and ultimately helps reform her image a little.
Hence my comment about his attitude ultimately what gets the blessing of her family when they eventually get married. To them he will be the one that reformed their delinquent daughter
