I think it is an analogy (pick whatever you want from whichever supplier you want, without having to sub to them individually) more than an exact duplication.

Well, the point of the analogy was to illustrate the business model.

I think there's room for a spotify model in writing. As a consumer, instead of a centralised platform, I'd like it to be an integration on the various websites I get content from.

I.e. the normal internet with it's various publishing engines, but paywall automatically bypased, ads automatically disabled and producer automatically credited & paid because I'm signed in to my 'servicename' account.