Yes, it can be bypassed another way. No, it is not expected behaviour.

With OSM planning we have the option for different segments, these segments allow for somewhat curvy, curvy, very curvy, fastest, off-road and custom. The off-road segment does not work, it should draw a straight line towards the route-point selected and speed up your work by doing it in the left hand menu, but it only calculates the quickest on-road route. Using the (universal) skip function on the route-point itself does work, but it's a lot more work when trying to create an off-road track and needing to go to each individual point to enable the skip function there. It also does not create any harmony and overview.