Good question. I'd lean towards more freedom I guess in terms of all the different foot movements, cuts, toe offs and so on, but the right shank plate would still keep things where they should be, like the XX8 and Curry 2. But I have no idea or preference really, and some of my favorite shoes have been both one piece and segmented.
agreed, i think what sets xx8 apart is that it only has the cf plate and flight plate to connect the heel and forefoot. there's literarly no midsole at midfoot. where as the curry 2, m11, lebron 13, fly wade 2, etc that i can think of has a midsole that connects the midfoot.