There are spots where Orwell gets convoluted. His famous and impactful (on me, lol) essay "On Nationalism" includes a confusing/backtracking carve-out for (presumably) Churchillian patriotism. But I think this is the nature of such ideas. They aren't absolute, falsifiable, scientific ideas. Just observations about people.
Agreed, and it's explicitly that British superiority which Orwell defends in the essay, carving out for it a special place separate from "nationalism" that communism, Trotskyism, Irish republicanism, zionism, etc. are condemned for.
I kind of like the controversial nuance though. It shows that these ideas aren't supposed to be scientific, absolute and such.