Bi-wiring and bi-amping are not the same thing.
Bi-amping is the use of seperate amplifiers for seperate drivers and can be advantageous in allowing adjustment of the output from each with crossovers in the speaker bypassed and external ones used to twiddle the sound.
It takes skilled sound people with good ears to make sound better and not a lot of skill to make sound much worse.
Biamping is popular in car setups and those can be great examples of how bad music can be made to sound using it.
This bi-wiring woofer-cone-as-commutator in 'generating' a backflush of EMF as in "In trying to stop, it actually goes through a process of "settling" because it is too massive to just stop instantly. As it settles, it moves forward and backward repeatedly until it can completely come to rest. During this movement, as the voice coil is moving through the field of the magnet, it generates its own signal. That generated signal is sent backward up the woofer wires and into the crossover, where it corrupts the rest of the music signal."
, well, I'd like to see the engineering test support data of this because it makes me giggle to read it. Kind of like an old snake oil pitch.
See those poor little woofer cone operators trying to stop the back and forth, back and forth thrusting-settling of their driver before they are dumped over with the backflush of electromotive force and killed by orgasmic electrocution? Tough job, but somebody's gotta' do it.