They specifically excluded partner redemptions from their promise. Also, they didn't say anything about "charts". It was specifically stated as a value per mile figure (non-disclosed). There's also a number of gotchas there as it's comparing mileage pricing to "fully refundable" revenue tickets, not non-refundable ones. They also mention in the "same fare class" and not just cabin. Which is naturally confusing as AS does not (yet) have one-to-one matching revenue to award classes (unlike Delta who does on awards to/from North America).