think about it.. they aren't even giving out 3 at a time now and can't keep availability.. so no way they could do any sort of express pass unless it was sold at super premium prices.
My only interpretation is when people had multiple days to pick from at once (due to length of stay), they were distributing some of the individual attraction demand because people could switch days... So at any one 60 day start, people were booking say from 3-10 day windows.. where now everyone eligible is concentrated trying for the same day.