Is there a video so I can know about what this author is talking?
No videos that I know of. She mentions Vine (video sharing service where people upload 10 second videos) but she never points to anything specifically. I guess we are to take her word and assume its a common occurrence.
He concedes part of her point and then blows right past it. I wish he'd take some more responsibility for calling out the behavior that he agrees is over the line.