She must have had some know how to get everything right for it to light up and run. She just shouldn’t have released the brakes until she got the right engine going. Maybe she tried starting #2 but couldn’t get it fire. But then if she had no rudder pedal experience (real or sim), then that might explain the plane doing a 180, and the fence doing the stopping.
The left prop looks messed up. Engine and mounts damaged. Wing outboard of the engine is torn off ( the bushes probably got doused real good with jet A).