I totally agree with your conclusion. I just recently went in mid Dec using DDP for the first time.
It was not our first trip to Disney, so we enjoyed our table service meals and rode the rides we wanted to ride. We didn't do any character meals (no kids this time), so Idk how families manage to do the meals and keep the family sane

. We were also disappointed in the dessert and snack department. There were not a lot of choices. It seem that all the QS only had cheesecake, carrot cake, choc cake, and/or brownie to offer. I would of been happy to have an option to not use the dessert and swap for another snack credit.
Would we do DDP again? I think with the Free DDP offer, we would definitely try it again. But to pay it OOP, I rather pack some water and peanut butter and jelly sandwiches in our bag. We always rent a car, so getting to a grocery store is easy.
Thanks for your analysis. It was a great report.