Yeah, the whole entire south tower is missing. The South Tower must have been a hologram.
Actually, what this video does prove is that the tinhats were wrong about the intensity of the fire. They like to play the recording of the fireman talking about two pockets, then go on about thick smoke being a sign of cold fire. Yeah, it's also a sign of a HOT fire with more fuel than it can handle.
You can dramatically see how the fire spreads in the North tower throughout the video. At the beginning, the west wall looks like it only has a few broken windows with some smoke coming out. By the end it's a raging fire.