Earlier quoted context omitted.
You do not seem to know how retail works, and have created an arbitrary definition of it to exclude the App Store.
What is your definition of retail?
Whether or not one thinks they deserve a 30% cut, Apple definitely works to make sure the App Store can at least deliver the application to the hardware and their interfaces ultimately bring Spotify's interface to the user. That fairly reasonably fits in with "the sale of goods and services to consumers". In-app purchases are more arguable (keep in mind it necessarily uses Apple Pay) but this thinking that the App Store is not comparable to retail seems to be a little narrow-minded.