You are definitely entitled to more than 9000 IMO. Granted this happened when I was a PP, I once received 60000 (I had to fight with the GM as he only wanted to give me the difference in the rate) just because the hotel gave my confirmed suite, guaranteed with a CC, away since we didn't get in till 11pm and they had to give me a regular room. It should at least be the same amount of points you would have to redeem for one night. An alternative is to ask the hotel to cut you a check for one free night, they can easily submit that request to Marriott - had this happen twice with guaranteed bed type which is a $100 check.

It's things like this that caused me to start moving away from booking Marriott, and bring all my business over to Hyatt whenever possible. Lucky for Marriott that they have hotels in more places than Hyatt or I wouldn't stay as much.