Good catch. No doubt they meant 50% to the author or just failed to mention the remaining 50% implying that it went to the post creator. The "curators" here likely refer to both the voters and commenters[edit: im wrong, he's referring to pre july4th curation/voting], where later detailed at 25% each. (Dan mentioned this line of thinking today in mumble -- commenters being curators. )
Previously they suggested 70% to authors so I don't think they intended to remove it entirely. : )