I always thought Graphopper would route for road bike, since you cannot choose another bike profile on the osm website.
I as well find it pretty interesting that the penalty is so big, it wouldn't go the more direct way in this example:
https://www.openstreetmap.org/directions?engine=graphhopper_bicycle&route=46.779548%2C7.113484%3B46.775171%2C7.115697#map=17/46.777063/7.117510&layers=N