We know exactly where we want to go as well and were really comfortable planning 180 days out. We'll be able to make due with the 90, but I think it will mean increased competition for the ADR's now.
To combat the ADR problem with double bookings and no-shows, they need to implement a more agressive deposit system tied to you overall reservation if you are staying on property or to a credit card if you are not. Then they need to charge people that don't show or cancel within say 8 hrs. This way people can legitimately book multiple places for the same time if they are splititng up for dining and not be penalized.