The dining plan, IMO, has made it possible for family groups to gather at Disneyworld as conveniently as they can go on a cruise or to an all-inclusive resort. Our family group, in the past, has always preferred a cruise to WDW because the food is pre-paid, so no difficulties in splitting checks, figuring out who needs to pay for the wine and who doesn't, etc.
I think one of Disney's intended purposes with
DDP was to compete with cruises and all-inclusives which, no doubt, market research showed were getting many of the family groups traveling together. "Grand Gatherings", was also part of this marketing push.
Unfortunately, mass market cruise line food has declined precipitously in the past few years. Now, WDW is doing the same. Market research must show that the average traveler doesn't really care about taste or quality, but only convenience and quantity. Some of the chain restaurants bear this out as well. I dined recently at a Red Robin and would not have been able to tell it from an Appleby's. All I will say is I swore off Appleby's years ago, and swore off Red Robin after my one and only visit.
For a time in the 90s, Disney was pushing a marketing angle that it was a great place for adults to visit. They expanded the restaurant offerings, added adventurous dining and wine options, put many sommeliers on staff and really pushed WDW as a grown-up and sophisticated resort. Perhaps it didn't work any better than when Vegas tried to push itself as a family destination. In any event, Disney has done a 180 degree about face. They've now changed the marketing focus to WDW is a place for family groups and average folks. Those who want a sophisticated resort experience are welcome to go elsewhere.
Whatever. We go and we do only what we like. F&W Festival dinners, V&A, a couple of signature restaurants and numerous places that don't take DDP.