Would think "hand wound" could be duplicated with the proper machine and machine vision.
Yeah, it is impressive that human hands can outdo the machine on something like this.
I bet it requires some skill to do it right. Probably not everyone is qualified / capable of winding one to Tesla's specs.
I bet a machine could do a decent, but not quite as good job in a small fraction of the time. It probably only makes sense to hand wind motors on a low volume, high value vehicle.
(Particularly using SF Bay Area labor, not some sweat shop in a far away place.)