The problem was once explained to me by someone smarter than I as follows:
Engineering is hard, marketing is easier, and more graduates are choosing the easier path. Thus to keep themselves employed the marketeers are stealing the design function from the engineers... but there's slightly more to it than drawing pretty pictures and imaginary budgets. Further proof of this is the recent spate of electric drone shuttles that have been "designed" by marketeers but can barely get themselves off the ground.
But lets say for a moment that they pulled this off, the wing flex would be pretty awful on pax, and if they made it fully rigid then those air bumps might turn the interior into a flying circus of its own.