I'm not really sure what anyone is expecting the outcome of this to be. The App Store's 30% cut is the cost of doing business. If you want on the platform, you have to pay the fee for it.
At most, what I could see would be the removal of iOS' Music app as a preinstalled app, or making Apple Music its own app which is not installed by default.
Splitting off Apple Music into its own entity that also has to pay app store fees for its subscriptions doesn't seem like it would achieve much.
If anything, Apple are being generous for even allowing external subscriptions that bypass the app store on the service at all.
At most, what I could see would be the removal of iOS' Music app as a preinstalled app, or making Apple Music its own app which is not installed by default.
Splitting off Apple Music into its own entity that also has to pay app store fees for its subscriptions doesn't seem like it would achieve much.
That trivializes the process to signing up and bypassing Apple's cut.EDIT: I also think that not being able to advertise sign-ups for the service outside iOS is scummy. They might not allow to offer the option in the app to use a third party service but not even a link? That is definitely not fair since Apple can use the IAP and not pay the 30 (or 15) per cent.
If anything, Apple are being generous for even allowing external subscriptions that bypass the app store on the service at all.