I guess what people are saying (and I would be more in this camp), is that compared to other videos that have leaked, this one was pretty tame and the person's motivations weren't overtly race motivated. There have been a slew of these videos were people are yelling at minorities to speak English, go back to their countries, dropping the N word, the president thinks it's OK, whatever. You don't have that here, so the case could be made that this miserable person would have called the cops on whoever was selling water, and it happened to be a black girl. It's possible I missed something or don't know the back story too.
Long story short, I am all for horrible people getting theirs, but I also hate this new trend of catching people on a 10sec video and everybody instantly calling for their jobs and labeling them one way or another.