No storage media, of any kind, is "safe".

So?

Digital storage is the most convenient to back up and transfer to other media (today!!!). Store your music in multiple places, on multiple media. When new types of media appear, start storing your music there TOO.

But this thread's topic is streaming services and their poor conduct. The answer is easy: BOYCOTT!!! Hurt their bottom line and they'll stop being jerks ... or else they'll just plain STOP! (best outcome, in my opinion)

And, in order to do so, have your music stored locally. Which is, I think, what Gargoyle was saying.

BB,
NightWing