It appears to me that the attitude is set by three points comprised of the lower rear fuselage and the two engine nacelles. Note that the aircraft has the same attitude once it was stopped.
I had thought the same thing myself at first except that in the video, I don't see any smoke or sparks coming from the bottom of the nacelles, only from the tail section as it drags along the runway. If the engine nacelles were holding up the weight of the entire front half of the plane, I would expect to see more evidence of it.
Hmm, well, unless perhaps the plane was rolled slightly to the left and it was the nacelle on the
other side of the plane--away from the camera--that was bearing the brunt of the weight. I feel like we're dissecting a UFO video now.