OP, did you make a change to your satisfaction?
I made a reverse change a month ago. I went from a package to a room only. Reason? Because of the cancellation policy difference. We are traveling in January. We live in the northern Midwest and weather is an issue. I came to realize that I had always made package reservations and had never given it a thought! I called and got a very good and knowledgeable cast member and she made sure I kept my original requested room as is ( I knew they were booked solid with no more openings). I had read how cancelling the original reservation could potentially be taken by another person just in the time you're on the phone or the computer since the cast member has to "rebook" you. The cast member I had on the phone knew this and was able to talk to someone else to set it up so as this would not occur! Bless her!