I don't care for mis-pronunciation by non-locals and non-English, even by English tbh because that happens up and down the country, but making up a name because you can't be bothered to look at a map and remember what it is called is just irritating, the sort of thing nursery kids do. Hearing this from Englishmen is just grating. Churchill confessed to being
"the thickest boy in the school" but
"a boy should know his English, if not I would flog him for it"
When America join the war in 2.5 years time maybe we can let them make places up, but until then they are in the RAF