I have a folder of MP3s, some of which date back to 1999, just a few years after the format was popularised. Most of them have utterly terrible names (think RIDEONAM.MP3). I think at this point they might even survive the heat death of the universe. And they’ll still be terribly-organised.
Also consider backing up to the cloud when you can. Never know when a rainy day will come by, or ICE for that matter.
“the cloud” is not a legitimate backup solution, and you’re doing people a disservice by advertising it as such. The majority of service providers are just as untrustworthy as spotify.
Its still a valuable part of a 3-2-1 rule based backup plan: 3 different copies, on 2 different media types, with 1 copy offsite. I don’t think they were recommending storing your only copy in the cloud afaik