Disagree. I have the Basis Arm and they have cable support that isolates the cable that attaches to the plinth. Works great and love the fact that I have the same cable all the way through without breaks.
By the way A system that is accurate and neutral should also be musical. If it is not musical its not accurate. I'm talking about accuracy to the recording. If the recording is musical an accurate system will convey that and not add or take away from the original source.