i doubt it, but, I admit, I am kind of confused by the whole thing. I don't get how the demand is higher during Sep than it is at Christmas, Spring break or 4th of July.
I am guessing that it has little to do with demand per se, and more to do with the fact that DW has 'guaranteed
free dining with 1 TS per person per day'
I know this might make no sense at all, but when people book for free
DDP, many presume they will actually get/eat/use all their credits, especially their TS credits. SOOO many people onsite will be on the free DDP that the demand is HUGE for TS places. During Christmas, sure, the hotels are booked but lots of people don't book the DDP. I bet there are much less % of people paying for the DDP for December than during free DDP in September.
Last year there were lots of posts regarding people that had no clue about ADRs. DISers were coming on in droves telling horror stories about how entire families had purchased the free DDP and were unable to find a TS restaurant to eat at. One could argue that they had the responsibility to book their ADRs, BUT I have a feeling that even if everyone did book their ADRs there wouldn't be enough TS places to go around.
Think about this- MK has 5 TS restaurants I think. The average day at MK has 45K guests!

Even if a restaurant can serve 500 guests per meal for a total of 1500 guests, that's only a mear fraction of the people going to MK that day. Even 1500x5 is only a very small fraction.
If say 50% of rooms are booked on the free DDP, that's A TON of people that need/want TS meals. It seems that DW perhaps over sells and can't always handle all the people on the DDP.
The idea that thousands were being turned away that purchased the DDP shows that DW struggles to find places for free DDPers to eat. Either they are like many of us and book ADRs long before their trips or they show up and find that they can only eat at CS places. These people are often LIVID at DW as they feel they were 'sold a lemon'.