yeah, they said that they would be adjusting reservations and experiences in the DPB that didn't really say anything but said a lot. This is what they are doing, people who had a resort reservation will get first dibbs to book again.
Why are they doing it this way? IDK but it could be to actually give people that want to come an opportunity to book. A lot of people hold on to reservations until last minute and then decide not to show, if Disney is going to control capacity they need to know who is actually showing up.
It is real bad costumer service on their part, but logistically it might be the best way to have actual numbers in hand before each day