I have no expertise on German names, but it would seem to me that even the principle of sticking to one name for a male line as long as it makes sense violates the WikiTree principle of "use the name they would have used."
Once one passes back into eras, or across into cultures, where the naming pattern in patronymic, one has to forego one LNAB across generations, anyway. I would often picture the best place to identify dynasties across generations as a free-space profile or linked category.