Actually they have fixed this. I just noticed it while playing around with it on the phone, and confirmed on the PC. If you "minimize" the routing window (don't use the "x", but use the "^", and on the mobile I believe it's the "<" symbol) the route now become translucent and you can see all the trail info underneath it. I guess that's the notification that you "accept" the trail perhaps?
I think the OFSC should have issued more How to videos before asking us to play around with it.. I bet a lot of questions would have been addressed already if they had.