Absolutely not. Disney in the 90s made a big push to improve food quality. They hired Dieter Hannig, who gave restaurants a lot of autonomy in creating menus, sourcing ingredients and trying to allow each restaurant to offer their own unique experience. Guests were happy to pay high premiums, if the quality was deserving. With the advent of the DDP, they completely got rid of this entire mindset. Guests pre-paid for their food and Disney was charging astronomical prices for the plans. This led to three key changes:
1) Drive up the cost to justify to the rubes buying the plan that it was a worthwhile investment ($60 character buffet is joke).
2) Cut back on quality since these people paid for their food in advance
3) Drastically reduce menus to reduce prep time, which allowed for volume over quality.
It now became, basically,
cruise ship dining across property. You force restaurants to homogenize menus and service offerings (only two restaurants on property now bake their own bread vs many before, for example) to meet what they company is already buying.
Obviously there's some variance, especially at signature places but overall the restaurant offerings at WDW are far more expensive and of a drastically inferior quality than they were pre-dining plan. No longer are there 10-12 entree choices, there's 5-6. Buffets for example used to offer actual prime rib, but because that was too expensive to serve people who had already paid for their meal, they switched to much cheaper cuts. After a 10 year hiatus I visited Chef Mickey's just prior to COVID, I was shocked at what they were calling food. Gone were the homemade restaurant-specific recipes (the parmesan mashed potatoes they used to serve were heaven), in was the defrosted Sysco stuff.
Another stupid anecdotal example is I remember one F&B exec bragging in an employee communiqué about how proud they were to have trimmed the type of French fries served at Disney restaurants from 11 to 2. Previously you could find a great variety (curly fries, shoestring, etc). Personally I loved the seasoned fries at Flame Tree. Now it's the same thing at every restaurant basically, with only a few limited exceptions. It's a minor example but goes to this cruise ship mentality.
Hannig left Disney in 2009, conveniently around when the dining plan was rolled out. Here's an article about the changes he brought, which went out the window when DDP came into being:
Dieter Hannig, who is credited with changing the face of restaurants and dining at Walt Disney World as the vice president of the food and beverage division,
www.scottjosephorlando.com