I think this reveal was more aaout showing the engine off, since even the full 13 minutes did have much gunplay.
Which does not sound like a typical 3rd person shooter.
Even if it was about showing the engine off, they missed the [arguably] biggest selling point of the engine! The soft-body physics! I mean, my goodness, why would they skip that part! I also feel like it was just the wrong way to show off the first gameplay.