I understand what you are saying Chris. The foam is very compliant so really does provide minimal pressure just to stop the slow sag and still allow a generous bend radius to not stress the USB A socket.
TBH, USB A and fairly inflexible cables aren't a good combination and from a pure connectivity point of view i prefer the more flexible Chord Silver Plus. From a SQ point of view the Sig TA works better for me. At least with Burndy cables, once you've preformed them they tend to stay in shape but they do prefer to hang. My old 300 was very sensitive to Burndy dressing.