I think the issue is mostly in the visuals. When you look for traditional English food, it is usually a plate full of beige stuff, sometimes paired with really unappetizing boiled carrots and beans. The gravy being on the side instead of part of the dish doesn't do it any favors either.

Also I'd argue England has pretty low standards for what counts as "food". I've had to work in England for a month, and finding something fresh, healthy and tasty to eat was a real challenge. I've never been as fat as when I came home.

The epitome of the wasted potential of English cuisine is the fact that it's an island full of the best fishes in the world, yet the only fish you can find is battered cod. Why is it so hard to get a salmon fillet? You have Scottish salmon ffs!