For example. Lets say the plane was real. It enters the building with no slowdown (my pixel by pixel analysis shows at most a 2% slowdown... well within statistical error of 0%). Amazing. This means that while the plane was entering, it was expending energy by breaking the walls AND expending energy by accelerating these impacted areas.
If that is the case, we must assume that the kinetic energy of the plane FAR exceeded that of the building. But wait a minute... if that was the case, why didn't the plane fly through to the other side like a bullet ? After all, if it lost 0 energy after travelling 75% of the way across the building, how could it lose all of it in the remaining 25%... twice in one day no less!