I didn't watch the entire video as I don't have time to sit through a 20 minute video*, however, what I did see of it didn't raise any tremendous red flags. Yeah, the lack of eye protection is of concern, but I didn't see muzzle discipline any worse than just about any time I've taken a first timer out (this even after instructing them about safe gun handling).
At the times when I saw her pointing hand guns downwards, I doubt she was covering her own toes, though video can often times make it appear that someone is doing something that they aren't due to the angle of the camera.
Her stance and grip when shooting the pistols is actually quite acceptably good, which leads me to believe that she took instruction well, and that her boyfriend, or whoever, did a reasonable job of explaining proper technique.
*I'm a big believer that YouTube videos shouldn't generally be any longer than about two minutes, tops.