Art is catharsis. People who are “cheering” for it are doing so because it resonates with them, because seeing a jackass get ridiculed and made uncomfortable is a reversal of the usual state of things, not because they think it’s actually a good idea. The juxtaposition of a woman loudly narrating the exact thing that the guy is already wordlessly broadcasting is not to paint the action as anyone’s goal but to give those of us who feel terrorized by someone trying to show off how “badass” they are a bit of a laugh. It’s not a vote or endorsement for that kind of behavior; it’s more like an expression of schadenfreude or an acknowledgement of intrusive thoughts.