It has a very chunky, dare I say manly neck. Whether ole Ned was paying tribute to Gibson tradition or whether he already knew that "you have to give the neck what you taketh away from the body", I don't know, but unplugged this bass is no anemic sounding toy. The "treble/bass and not much in between" is a tribute to the times and a consequence of the electronics, not a structural issue of the bass.
If Gibson did a Ned Steinberger-catered reissue of these basses with state of the art active electronics and a midrange boost, I would unhesitatingly gladly buy one.