Is publishing about to get Spotified? The platform publishing future

Publishing could be Spotified within five years. iTunes only needed a year to take ascendancy over record labels, and now Google Accelerated Mobile Pages (AMP) and Facebook Instant Articles (IA) promise the same fate for publishers.
The implied end goal for both is a platform publishing future that mirrors the platform-dominated present of the music industry, where publishers are pure content creators with exclusive output channels. At this stage however, that future remains hypothetical, r