Because I don't like features being shoved down my throat. Simple as that.

I'd be much more willing to try the stuff if they gave me control over when I do so LIKE THEY DID IN THE VERSION LITERALLY PRIOR TO THIS ONE.

Apple did the same thing with watchOS by the way. They forced a stupid new quick actions menu that always pops up before getting to the all apps screen and removed the app switcher. if you want to terminate non-working apps that are prone to not working, like Apple Music, the solution now is "well, tough shit."