Everytime this pic gets shown, people overreact to it. If you've seen the video, you'll know that they're moving very quickly through a fan-filled corridor and Max Matsuura is actually trying to get her away so that there isn't a chance for someone to break through security.
Also, I'm surprised that no one's mentioned that this is really common (i.e. the accidental hand placement). Especially amongst people who you're comfortable with.