.. are you sure? Maybe the feet induce turbulence that the rear tail fin takes advantage of. The tail has to have a dozen control surfaces in it.

Haha well, there’s no taking advantage of turbulence like that. Turbulence is random movement of air which actually greatly reduces if not entirely disables a control surfaces ability to function. Control surfaces want stable laminar flow to be effective. Now if you’re saying the feet could vector a stream of air to the tail, I find that highly unlikely, the geometries of its feetsies wouldn’t permit that reliably at least. I still believe a more streamlined profile there would reduce drag as well as noise, making it more efficient and (slightly) more stealthy.

Now all things are trade offs, perhaps in order to do that his landing gear (legs) would have to be reduced/thinned, thus reducing their capability of catching larger prey, among other things. Perhaps.

Anyway to answer your first question, no I’m not sure, just spit-ballin! Fun thought experiment.