I agree, except that I also agree with the other poster who noted a change did occur shortly after
DDP was introduced. Before DDP, food quality at WDW went up every year. Then it went down considerably. Eisner also publicly talked about cutting food costs.
according to an article on the WDWinfo site, "Each department head, whether a hotel manager, retail manager, or restaurant manager is charged to make more money than the previous year. If they do, they will receive a bonus. If not, well there’s no magic in that. So in the Food & Beverage (F & B) world, that means you either raise menu prices, serve more guests, cut costs or any combination of the three." Really, the situation went far beyond WDW during the recession. But Disney did experiment with cutting food costs during the free dining promo. Naturally, they decided to extend those cuts beyond those few weeks when the economy nose-dived.
The other big thing about WDW food is that guests, are sorta kinda stuck there. At a ballpark, we can survive a few hours without eating the food they sell. It gets a little more complicated if WDW is an all-in-one, week long, full-family destination.
People with allergies and disabilities have families. So the WDW that won't accommodate little Jon's allergy is excluding not just Jon, but his whole family. And THAT makes for a rather large chunk of the general population.