I would agree that the transfer to the new app was a disaster. If Sonos would have been transparent about the impossibilities of having two S2-app, would have been open about missing feautures and would have published a timeline of their reappearance this would not have been so bad. Explaining to people the need to ad TuneIn as a music service would have been nice too.
Instead Sonos chose to build an avalanche of PR blurb without acknowledging the few disadvantages of the new app, disappointing current customers. I trust this will end alright, but Sonos needs to think about their PR strategy. Make use of the loyal customer base instead of alienating them.
Sonos has published a timeline, but only after the backlash: