I was thinking the same thing, GW, but it occurs to me that there may be some significant technical difficulty, not to say impossibility, in attaching a plastic sole/foot base to the rubbery flesh (and, also, at the same time, to the metal endoskeleton). Still, it is beyond me why they cannot have a functional metal ankle inside the seamless rubbery flesh foot -- though the seamless rubbery undersole would certainly play havoc with balancing, so perhaps even trying to do this might be considered impractical from TBLeague's point of view. Just thinking out loud.
Interesting about the S29 problems. I'm guessing some batches may have shared problems that are not present in other batches. If one happens to have gotten all their S29 bodies from the same place (or same distributor or same batch -- some of which is probably impossible to trace/realize), it might explain it. My S29s have been generally issue-free, and only once when posing one I seem to have experienced anything resembling some of the complaints. On the other hand, all my M31s -- admittedly gotten early on and probably from the same batch -- had wrist peg issues. Combined with my lesser appreciation for that body (bad frontal sculpt, poor elbows), that has left me unwilling to take another chance on it -- well, actually I did, just once (it is the easiest of their male bodies to clothe, after all), and haven't had the heart to check out the damn wrist pegs yet. S29 is one of my favorite bodies, so I'm very sorry to hear there are common issues with it, and always a little apprehensive lest they show up on mine.