The fact that Apple is using third-party DRM in a web app is news. Apple TV / iTunes videos never had a web app, and presumably DRM was a big factor.
Well, uh, yes. You really expected them to let you download an unencumbered copy of any song in the iTunes catalog?
Yes, I expect that a service I paid for does not include untrusted malware. Thankfully there are other streaming services which do not do this.
Could you name one please? (That has a comparable catalog to Spotify/Apple Music)
I used to use soundcloud which has a fairly large catalog of music if you have the paid version. I eventually canceled it because they had an annoying habit of replacing tracks with random remasters so something in your liked list could change to a different version that is much worse. These days I either use bandcamp or torrents.