I think the typical recumbent rider is older and likely suffering from some health problem that steers them towards a design which takes pressure off their back.
Haven't we sort of looked at the demographics of recumbent riders as old white guys?
Young people love the thrills and chills of sport and this is why the aerodynamics question has a way of ruining the fun of the sporting nature of bicycles.
I remember as a kid riding BMX bikes and it was that sense of being free and being able to jump into the air that made it so fun.
We are all still kids at heart when it comes to bikes... even if some (like me) are old and gray. (not super old yet though)
How does one design for aerodynamic benefit without wrecking the sporting aspect?
That's the real question.