My time in dev rel taught me if the content doesn't come, you gotta bring the content, i.e partnerships. With permissioned data and communities you could tell Spotify, hey, bring your data here in your scope, show it only to subscribers and people can have a convo about their fave new jam.
I wonder how much of this is bc of the product, and not for lack of trying by the bsky team mind you. World cup and NBA highlights weren't here. The core product hasn't evolved much either. atproto has the primitives for a compelling social experience, bluesky just doesn't have the content.