It happens to food too. The "traditional" foods are never from just one place and it's always evolving and somewhere along the way someone adds their local cultural twist to something from the outside and it's suddenly so much better.
I cooked a recipe recently that was based on a dish that was made for American GI's in Japan after WWII ended. Okinawan Taco Rice
Now that's the only way I want to eat taco meat ....
On the other hand I'd argue flatbread with something on it is one of the base foods. Whether it came before or after the dumpling/packet family is a fun discussion.