AA is providing a valuable service to tons of people who don't have access to these books otherwise. There's a strong argument to be made for the moral goodness of that -- that even if it's illegal, it's at least in the spirit of a public library. And they want to potentially jeopardize that to... release a bunch of music tracks, that are just entertainment and mostly widely available on YouTube already anyways? Major misstep.
Like, even if the same people are proud of scraping all these tracks and want to release them... at least do it under the name of a totally separate project? A separate domain, or just describe it and post the torrents somewhere else? Don't tie it to the AA site or identity. Don't tie things together when it creates no more benefit but does create more risk.