Looks like Tourets Syndrome. Perhaps maybe that is why no one did bother her. They knew she wasn't intentionally doing it. Yes I have had patients with this disease and people do mistake their involuntary actions as intentional especially when they are able to respond to questions right in the middle of these episodes. Unfortunately she was disrupting the other pax but with only a short video, we don't know how long it lasted and if in fact the crew did or did not move her.