Even if the image was distorted wide why would the proportion of the width of the fuselage to the wingspan change? It would not. If this is in fact was a closeup view of the orbiter, the high magnification and narrow field of vision would render the image very flat and non-distorted(as opposed to a wide angle lens). In that case, the proportion of the fuselage to the wingspan would remain the same. In the supposed closeup the 'ears'of the engines containing the smaller engines appear at a point halfway between the wingtip and the centerline of the aircraft. In reality they are at the inner 1/3rd point from the centerline. . What you calling the body flap appears to be 1/2 the total length of the image. In reality the body flap is less than a third the width of the total wingspan. And if the tail had broken off, there is no way this thing would not be tumbling out of control at that speed. This image and footage appears to be stable
This is NOT a closeup clear image of the shuttle. It's an optical distortion that happens to be similiar to the shape of the shuttle.