Not sure I understand your point. The Apple Watch doesn't have the sort of WiFi that allows it to independently connect to the internet or Apple Music.
I'm just noting that a few people drew the distinction between offline listening and transferring files to a device without independent connection to the internet as an issue of *transferring* files.
Basically, people are saying It's one thing to make a file available offline on a single device — transferring that file to another device is something else. That could very well be the case (think Spotify and other streaming music services).
However, the Apple Watch pokes a hole in that theory. It doesn't have an independent connection to the internet. For the most part, it acts as a fancy remote control for music playing on the iPhone EXCEPT for when you *transfer* song files to the device for offline listening (if you don't have a Watch you're not going to understand this distinction).
When you make songs available offline on your watch (both before and after Apple Music) - you literally have to send the file to your Watch so it can play the track from its internal memory. I am TRANSFERRING Apple Music M4Ps to my Watch (you can't download these files on the Watch independently - you must transfer from your phone).
What makes transferring Apple Music M4Ps from iTunes on the desktop to a Nano any different? The Nano has practically the same connectivity as the Apple Watch (Bluetooth I don't know if it has that ad hoc wifi chip but that's not what the Watch uses to connect to the Internet). I think that's the frustration/confusion/