I think the problem with food is that they, as a chain, are trying to do two things, which are diametrically opposed:
Act like their food is "elevated", "fancy", etc to try to get people to pay out of pocket for it
Continue selling hugely underpriced dining plans because (as Disenchanted Parks is finding out) passholders will not pay out of pocket for food after having dining plans for 11 years, and raising the prices will only get the people they actually make money off of to stop buying them
The thing is that a lot of the issues with food don't have anything to do with the chef or even really the park, it's corporate budget cuts due to the failure of the merger. Even the worst chef would admit that, say, selling a $20 burger that doesn't come with any toppings is an obvious fail, but the parks do it because it saves a little bit of money.