Actually my initial thought was that the whole video is garbage, but I suppose given the target audience the advice could have been a lot worse. But the way to really get the most out of bxp is to prepare way in advance, so releasing a video 2 days ahead of time just isn't going to cut it. But it is a good starting point for beginners like you said.
"The only thing an adult can give a child is a yellow cape." - Chuck Jones