It's becoming clear that based on the past few updates, Sonos does not want its users to choose what to listen to.
1. They removed the ability to add anything to the queue.
2. They removed the ability to play from your local library (definitely on Mac, not sure about Windows).
3. Did they also remove voice controls? I thought I heard this, but maybe I misunderstood.
These things all point to one thing: they don't want you choosing your own music. They want streaming services to be the only convenient way to listen to music without interruption.
I assume this is intentional and they are pushing people to streaming/radio services because they get a financial incentive of some kind based on the number of users. It's too consistent to be anything but deliberate.