I admid that many wing-thinkers might be puzzled by this way of designing a wing. But ... it is like Albion Bowers (retired NASA-chief-engineer) said:That was my understanding as well
"Assumptions are the unseen walls we use to create ... the box".
Most wing-design-books start with the assumption that elliptical lift distribution is the best way to design a wing. Just a few papers in history took this in question. Albion Bowers took those papers to heart and studied them for more than a decade to reverse engineer the flying wings of the German Horten brothers. And he succeeded to understand the system. All of the classic wingdesignbooks i have at home never talk about this BSLD-system. So ... it is very hard to convince the people inside the box to look sideways and make their design-horizons wider.
It has become the classic story of not seeing outside the box. Some day ... some day ... a new book will be used in the aviation-schools. BSLD is just too good to be forgotten.