I'm sorry mate but this makes no sense. So you are arguing against the real terms effectiveness of complex against single wire (which I'm willing to accept to a certain extent) but where you draw the line is between hand made and chinese spools of said complex wire? That's like saying all mushrooms are the same, including truffles, except when they are cooked by some wank shelf in central London for the price of a small mortgage. (not comparing
@Smut to Gordon Ramsey here!)
Wires are different. I don't know the science behind it but have done the closest to a blind test which is getting my ocd ramped up to 11 and do like 4 builds in the same rda with the same juice in one night, because it never felt "right". And they are completely different. In an airy mofo like the goon or the Kryten complex wires make a world of difference. Why wouldn't it be the same for MTL? It's still down to surface area and how the evaporated juice mixes with air coming in.
What I completely agree with you is that there is no holy grail of wire or build. Each person and rda and juice (pg/vg and, I find, concentration of sugar) will react differently and produce a different experience that will then be perceived individually by each person. So it is hard to give advice.