Your example of 4 rooms available doesn't make sense.. Of course they could decide that someone arriving on the 18th made their reservation before the people arriving on the 17th and so should get the preference on the room. That is possible and is done all the time with
DVC in other situations where you call BWV and ask for BW view and are told that it is only available on Day X but Days Y and Z you can only get a pool view. So the people that reserved after me on but arrived on the 17th should be notified that they have a savanah view on the 17th, but it will not be available on the 18th-24th..
As for the points, if I cancelled at 30 days or now, MS has been working with people and the points don't go into holding but back into the regular pool so that isn't the issue.. The issue is more about plans that have been set and very difficult to change now because we figured being within the 30 day period and no notice to the contrary that we were good..
And finally, when we made our reservations, it is important for you to realize the issue with the animals and sunset savanah was NOT an issue. It became an issue after we made our reservation. However, every person making a reservation after they knew it was an issue was still allowed to reserve a savanah room as if the sunset rooms were really savanah rooms so they overbooked knowing that it was going to be an issue. When I booked, it was not a known issue so how can you say that we knew it for months. In fact, when we called after it became public knowledge, our reservation was specifically noted that we do not want sunset and we were also assurred that since we booked at the 11 month window, it shouldn't be an issue so we kept our reservations at that time because we considered moving to BWV at that time. That being said and after the 30 days passed, I still believe it is reasonable to expect that we had the room type we requested..