GG, you almost reflected the reality of the situation in your post title. Bi-wiring is sometimes sarcastically referred to as "buy-wiring", because of the lack of any benefit for the added expense. All speakers with an internal crossover have a point where the wiring separates into two branches to go into the high and low frequency sections of the crossover. With one speaker wire this happens inside the enclosure just before the crossover network. With two speaker wires being used the separation point is moved back to the output terminal on the receiver. This makes no significant electrical difference and the procedure is audibly meaningless.
