I haven't followed the automation saga too closely, but was its ultimate purpose to improve operational efficiency, or to try to eliminate the need for pilots in the long term?
If the goal was just increased efficiency, I'm not sure why anyone thought automation was going to move the needle on that. There's too many other variables with the system that need to be performed manually (opening/closing doors, the station gates, wheelchair access) to make train automation effective. Automation works best when everything (or nearly everything) can be automated and centrally controlled. As soon as you have to do bits and pieces manually, any potential gains quickly vanish.
If they want to make the system more efficient, then they've got to get station dwell times down. I've always been surprised at how inefficient station stops are. Some of it is guests no doubt, but a lot of it is just CMs being slow to open/close doors, a lack of platform CMs for the various tasks, and/or horribly inefficient procedures. And apparently it's only gotten worse in recent months.