Artists postings thus far have been less than stellar. I think Apple has made a massive mistake billing Connect as a place to follow musicians. Connect is actually a wonderful service being squandered by Apple. The things that Apple is expecting artists to post just aren’t that interesting. Links to their own music and original photos or videos are relatively weak sauce, and the posts have been few and far between for most artists.
However, Connect is great for sharing exactly what I came to the Music app for: music. The trouble is most artists aren’t posting music; they’re promoting themselves in a fairly bland manner. I’ve found the best people to follow are DJs and performers with shows on Beats 1, as well as Apple’s in-house “curators.”
What he envisions is dangerously close to what Ping used to be, but the difference of following curators for updates on playlists could be key. I've also noticed that most artists on Connect tend to simply post links to their YouTube videos (often shortened to track clicks), so this is an interesting idea.