Well yes, I would have thought both would have been warned... but again there would have been a signal, too, well before they were to meet. Modern dispatching software enforces this rule; you have to have your signals set up right before you can tell the crew that they can move the train.
I’m half kidding here because I am not all that familiar with it. I had a few weeks on a computer aided dispatching project before I got switched onto a PTC project. Just long enough to see how it behaved.
If one of the parallel tracks was under repair, there might have been confusion about whose turn it was to take the siding? We’ll have to see. I am not on BNSF but a different railroad.