It makes sense to me, though I shoot both types without those physical problems... thank God.. I have enough other physical problems :^)
I can actually shoot recurves better, but even though I have a nice selection of Super K' and Kodiak TD's, as well as RD's, the bows that get shot are all straight grip D longbows... Hills and my own Slowpoke. I think if you try a real, straight grip longbow, you'll find that physical stuff aside, it has a different feel emotionally...like, OK - this is real basic archery. I'm laying up a new one tomorrow, and I plan it to be not only straight grip, but no shelf, shoot off the hand. As much as the grip, shooting with bent elbow, necessary for the straight grip D's, takes a lot of pressure off of the hand/wrist. Try a D... hopefully it will help with the physical stuff, but you may just find you like it more.