...because the selected parts are already joined together... Once joined together, their intrinsic nature became hidden and is now not visible....making the Partzufim equal... When the selected parts were joined together in each case, this produced a Partzuf with the full nature required for the governmental order of Atzilut. Whatever had more parts needed more labor to attain this state, but once it reached it, it reached it. (Similarly, it may take more to repair a vessel that is more seriously damaged, but having been repaired, it is no less functional than a vessel that was less severely damaged.)
Thus a Partzuf made of few selected parts with minimal labor attained the same as one made of many parts with much labor. What was required at the outset is no longer recognizable because, inasmuch as they are Partzufim, they are all equal (in the sense of being built with the same structure – the human form).