Not only does it look like a Nazi salute to most people, Nazis also took it as a sign that he's one of them. His representative in Rome called in a Roman salute

Not only does it look like a Nazi salute to most people, Nazis also took it as a sign that he's one of them. His representative in Rome called in a Roman salute (same thing) before quickly deleting it. It's a Nazi salute to everybody except a handful of people who are desperately in denial about it.