Thanks for your comments on this, and apologies for any confusion.
We'd recommend heading over to this existing idea 'Apple Watch: Offline Listening', and leaving a vote there. This is the best way to get your feedback to the right teams.
Hope that helps!
C´mon people! Offline Music on apple watch is a must! Please fix it!
I'm thinking about moving to Apple Music. This is a buzzkill
Spotify lost another customer unfortunately, I also switched to Apple Music. Too bad.
And they lost another customer. Switching to Apple Music too. Really sucks, that I can't hear my Spotify Music on my Apple Watch.
I consider switching to Apple Music. This is an abberation that Spotify doesn't have an Apple Watch app yet. Seriously ? Ridiculous.
Make this app ASAP.