There are two things that are in favor of directional argument which I already posted in the past.
1. If you got L3>L2>L1, then the impedance may not be the same one direction vs. the other.
2. An AC current is directional even if it's an alternating current.
1. If you got L3>L2>L1, then the impedance may not be the same one direction vs. the other.
2. An AC current is directional even if it's an alternating current.