Sure, I'll accept that. Pizza didn't exist until 2009.
Or, more seriously, are you saying pizza was invented in 1889 in naples, years after people were selling pizza in New York?
Later research cast doubt on this legend, undermining the authenticity of the letter of recognition, pointing that no media of the period reported about the supposed visit and that both the story and name Margherita were first promoted in the 1930s–1940s.
Like all things pizza, everyone claims to be the first and they're all liars.
If you demand true authenticity, accept nothing after the early 990s oiled flatbreads with buffalo cheese, sharing a common ancestor with pita. Because you're not going to find an actual origin for who, where or how people first "properly" put stuff on their bread when we've been eating bread and stuff for all of human history.
It's like saying that the only real sandwich is a single slice of salt beef between two slices of toasted bread with no toppings or condiments. Everything else is just some manner of dumpling.