Yes, I have used BiaB as backing tracks for both my guitar and bass students. Just pick a style/genre, generate the parts, then mute the bass part.

For my guitar students I mute the guitar rhythm track for teaching rhythm but keep the entire song for teaching lead guitar.

I use MIDI for those backing tracks because I can slow them down or speed them up without introducing artifacts. Also these are not demos or songs so they don't need the best sounds available.

I hope this helps.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware