They ignore it because it isn't in fact, a fact.This is great, no doubt, but the dev fee has always reduced to 15% after the first year, although the media and competitors repeatedly ignored that fact. But yeah, for new apps this is super!
This might explain your confusion - https://developer.apple.com/app-store/subscriptions/#revenue-after-one-year - but it only applies to ongoing subscriptions. For some developers that's a chunk of their revenue. For apps that cost money and have no IAPs it's a fat nothing.
This program applies to all types of revenue.