I mean, *think* about it and look at the image. Note the straight lines going up and down from the brightest portion? The angled one going at about 45 degrees? Are those 'real' - of course not, they are optical 'flares'.
The effects look exactly to me like what you get from a window with erratic microscratching - when you are driving at night in an old car with wiper-induced scratches or smearing, you will get the same effects - streaks that emanate outwards from a bright light source.
And yes, they can most definitely go forwards... Depends on the angle/motion of camera/glass and the motion of the object. And given all those videos of this, why was this the only one? A magically super-sensitive lens and sensor? Or shooting thru scratched/smeared media.. I'll go with Occam's razor..