Oh, it's coming. Maybe not today, maybe not tomorrow or even next year. But I'll make a bet 10 years from now one-person crews (can you even call it a "crew" if it's only one person?) will be common. And I'll go even further out on a limb by predicting 30 years from now, over-the-road trains will be run by computer and GPS, with no humans on board. I suppose they'll still have to have people on board at terminals to do switching and spotting of cars.
Makes me glad I won't still be working to see that, I'm glad I started when I did. The woman quoted in the article says they used to have 4-man crews, when I started they had 5 and that's after they got rid of the flagman - it often used to be 6. Hey guys we're dinosaurs, on the way out!