Got this just now, says targeted:
Reward a stay with 7,500 bonus AAdvantage miles
Book hotels on Rocketmiles to earn 1,000 - 10,000 American Airlines AAdvantage® miles per night, every booking. Plus, earn 7,500 bonus miles when you use your AAdvantage® Aviator™ MasterCard® to spend $250 or more on your first booking.
Bonus is restricted to the AAdvantage member who receives the email offer from American Airlines and is non-transferable.
Minimum spend requirement of $250 on a first booking — inclusive of taxes and fees. Limit one per customer. Limit one per stay. Co-brand credit card status will be verified after booking.
Bonus is non-transferable. Limited to first time customers and
subject to investigation post-purchase.