I haven't been around a while but this vid showed up on my phone. A golf ball does not go up because of a Ferris wheel swing. The club has a Pitch on it so it will go up. Try hitting a one iron and getting the ball in the air,lol. Point being some of his statements are incorrect...
On a real inside pitch the hands might slide forward to get "out front" of the body (mid line). The lead arm bends and doesn't straighten. So on some swings the lead arm is extended and some the lead arm bends.