Other routes are there:

When you have searched for a destination, click on the bottom right where it shows the commute type (car, bus, bicycle, walking) and estimated time. From there you'll find a list of three suggested routes (at least I do). When clicking on any of the the suggested routes, it'll show all of them in the map and you can also choose a route by clicking on it in the map.

Additionally, I get back from navigation to route view just by pressing the back button. Works just like it should?