You typed this post full assumptions. You are clearly the one losing your mind. My analogy is spot on, but it flew over your head.
I'll try and explain this to with the hope that you can understand this is Traffic Law that BTW I didnt write. A train striking pedestrians on the track has nothing to do with a motor vehicle accident between two or more motor vehicles. It doesnt matter if vehicle 2 stops for a deer, a raccoon, for other traffic, or cause a naked woman is in the window of the house nearby. Its the responsibility of the vehicle in back of him to stop, which makes that vehicle the "striking vehicle".
I have nothing to do with it. Its the GD traffic Law and its the same everywhere in the country. Had this gone no further then the initial accident then Veh #1 "SUV" would be the striking vehicle. Big deal, he might get a ticket and the insurance companies can fight it out.
A train is NOT a motor vehicle because it cannot operate on a road or highway and instead only does so on a fixed track. Thats why your analogy is insane, because it doesnt include any "motor vehicles". Now if you hit the pedestrian on the roadway in your car you'd be the striking vehicle because you were operating a motor vehicle and its your responsibility to avoid a pedestrian. Which means your the striking vehicle, ticket...et al.
I know my post is full of "assumption". I said it was in the post. For the 5'th time nobody here knows what really happened out there during this incident.