When you click the green banner at the top of the screen that appears when you are tracking time on a Task, it should take you TO that Task, not to the screen where you can change what is being tracked.

I would guess people are far more likely to want to go TO the Task they are tracking than they are going to want to change what they are tracking.

After all, you are tracking time on that Task, and, thus, likely working on it. So it is likely you want to access that Task quickly to interact with it.

Otherwise you have to open search and search for the Task currently being tracked, which doesn't really make logical sense.