I don't see how they can say this is a feature - because it didn't happen to me. I have a huge amount of music that they wouldn't be able to match and they didn

I don't see how they can say this is a feature - because it didn't happen to me. I have a huge amount of music that they wouldn't be able to match and they didn't delete any of it. Maybe this is because I'm also using iTunes Match. Your issue might be iCloud Music Library (not Apple Music).