FWIW if you listen to it at half speed (or quarter speed, I forget which) it becomes apparent that Lou cranked up his stack of amps, set down his guitar in front of the speakers and just let things go from there, recording the resultant feedback and speeding up the tape. As someone who enjoys the odd bit of electronic musical strangeness I wouldn't exactly call it unlistenable, more like once a decade listenable for when I'm in a really strange mood. The modern equivalent is “zero input mixer” style although the little I've heard tends to be less noise based and more grounded in the early fart and whistle days of the genre.
Thanks so much for addressing this.
I was curious what others thought of it and wrote my post a little hastily, I see I stumbled my words a bit.
I’ll reflect on this more later. Good to know someone else has heard this.