Triathlon Coach Issue with ride ending automatically in brick session

The triathlon coach gave me a brick session consisting of a three-hour ride followed by a 55-minute run. When starting the session, I was asked what type of bike session I wanted to do, I selected "Road Bike".

When the 3 hours for the ride were over, the transition started automatically. The problem was, that I was riding outside and was still 3km away from the point, where I wanted to start the run. 

Wouldn't it make sense, to let me decide, when the ride is really over? How can you plan to be exactly at the start for running after a 3 hour ride?

BTW: in Brick Settings, I had Transitions active and Auto Sport Change disabled.