gould admits evolution of function are tall story

http://www.stephenjaygould.org/library/gould_functionalshift.html

Darwin's critical theory of functional shift, usually (and most unfortunately) called the principle of "preadaptation,"[1] has been with us for a century. I believe that this principle has made so little headway not only because the basic formulation seems paradoxical and difficult, but mainly because we have so little firm, direct evidence for such functional shifts. Our technical literature contains many facile verbal arguments—little more than plausible "just-so" stories. The fossil record also presents some excellent examples of sequential development through intermediary stages that could not work as modern organs do—but we lack a rigorous mechanical analysis of function at the various stages.

excelent but still not conclusive

you have flying system of which wings is just a part nerves brain program muscles
of the wings you have material , structure , dynamics , thermal regualtion system will not be set up for flight otherwise radiators may fly

the whole thing is scating on thin ice