Sure. For comparison, I can find references to "bare metal" meaning "no operating system" dating back to 1989...3 decades:
https://apps.dtic.mil/dtic/tr/fulltext/u2/a219356.pdf (search for bare-metal)
I suspect it comes from the automotive paint industry. Sanding down to the "bare metal" for the best finish...where the primer and paint are as close to the substrate as they can be.
I imagine it also has some meaning for the music community.