EDIT: it looks like Facebook Instant Articles also takes 0% of publisher-served ads [1]. So it looks like this Apple News push is merely an attempt to match Facebook's product (and Wired screwed up messaging / accessibility here).
I'm still curious as to if anybody can add commentary / context from an advertising point of view.
IMO these events indicate a future where portals serve publisher content in a way that improves user experience (fewer ads, faster page load times) while the publishers catch up (rather than replace) their own native web experience. Publishers will want to own their distribution if it does them well. These plays (Apple, Facebook) may be less about poaching display dollars from Google than 1) cutting low-quality advertisers out of the network and 2) increasing hub engagement. I doubt the hubs monopolize the market but I'm definitely no expert
[1] https://s0.wp.com/wp-content/themes/vip/facebook-instantarti... LOL the FB site is running on wordpress ...