> On the other hand, once the app could be controlled again (assuming this singular underlying cause), you'd think they could then also start putting train serv

> On the other hand, once the app could be controlled again (assuming this singular underlying cause), you'd think they could then also start putting train service back in place and that didn't happen for hours still. Before you can get the actual service up and running, you need to get trains and personnel to the right locations. So I don't think this discredits your theory as much as you think.