I remember.....back in the 60s, talkin' about which speaker would "match" with what amp.

"Watch those impedances!" "Hows the finals' output?"

One amp works great with this woofer, but not that Mid. The other amp works great with this mid but is iffy with that woof. Hummmmm....They Just Don't Match!! These amps don't sound the same or work as well with different drivers.

How 'bout "this" amp with the woofer and "that" amp with the mid and tweet?

A half century or so later; amps occupy a different world. Perhaps bi-wiring terminals on average speakers are more like having wisdom teeth.