Comment by krisoft

It sounds like you are an expert on DB rules and how they affect the decision making of the various entities in this story. So I will leave that part to you. I personally don't form opinion on things I don't know about.

What I know, and what I'm repeating now in the third comment, is that it would not have been safe to let the passengers out on the platform-less track there. Not because of rules, but because of common sense.