The Wright brothers were incredible engineers, and a twisting wing made sense for their design. For high efficiency, a stiff wing is a must. Nowadays active stability systems make more designs practical. But the mission goals here favor low weight and reliability.

Also the Wright bros’ litigiousness over their IP was a main driver of the effective extinction of wing warping and the rise of ailerons rather than strictly engineering concerns. I imagine with newer materials wing warping could be pretty effective.