To your point, there will always be an axis of optimal strength for a layer based 3D print, and layer adhesion is the weakness, but if you full fiber fill the print then the fiber does tie the layers together like a coil.

Multiple interlocking parts with axies along the vector of greatest strain would be the solution with this setup of you are really expecting strong forces from many directions. That said, this printer is also capable of printing with some very strong polymers on top of the fiber, so it seems pretty capable in a lot of scenarios.

Their examples of drone and robot parts are pretty optimal use cases, strength to weight ratio is the bottom line here.