Out of interest, and without politicising this and without getting yourself in trouble (after all I’d imagine you’d be reasonably easy to identify) did you find being an OBS rather than a safety critical guard/conductor hindered the situation? I appreciate you weren’t going to go out there and push the unit, but during SWRs new forest incident the guards on all 3 trains were constantly out on track assisting the driver and MOM.
I didn't feel that my non-safety critical status hindered the situation really. We were simply stranded, and it wasn't an emergency in terms of risk to anyone's safety or welfare (though I did give someone my coat, as obviously without power there is no heating).
I was never a conductor so I can't say what extra things I could have done if I was, though I imagine not much because it was simply a case of waiting. My job was to keep passengers informed. It was all fun and games until the first rescue train also got stuck, then people started to get a bit tetchy. Understandably tbh.
Sending an electric train to another electric train that can't draw power due to thick ice on the third rail ... I'm astonished that nobody involved thought "this might not be a good idea"