Am I understanding correctly that you're looking for a HN poster to explain to you the complexities involved in maintaining compliance, legal and licensing for a globally distributed service, just so you can decide whether or not to be outraged by the size of Spotify's staff count?
Here’s just one example of where Spotify didn’t actually have enough staff to understand the legal requirements of one single product decision: https://news.ycombinator.com/item?id=24764371