When I contacted them about having my wedding at Moon Dance Villas, they said that you can have guests stay at the Cliffs and be bussed over to hang out with you at the Villas. She also said that they could do the AI plan at the Villas for the RD and Reception. That way more guests could come, even if they did not want to spend all of the $$ on a Villa.
However, the catch was that you can only have double the amount of people come to the wedding as are staying in your Villa(s). So, for instance, if you had the 5 bedroom villa booked with 2 guests per room, then 10 people from the Cliffs (or any other resort) could come to the wedding. This did not end up working out for us as we want to invite more people to the wedding.
We are still planning to do the honeymoon at Moondance. We just think the wedding planning would be way to stressful if we did it there. I don't want to be stressing about the # of people allowed to come to the wedding and making sure everyone really books there villa/room.