Welcome to this side of the world
The Lancaster is definitely a bit weird - but then again, so was seeing a bunch of British battleships at Pearl Harbor in Pacific Fighters
You'd think people spending all that time and money doing a game about a specific historical subject would catch something like that - why even bother to put the thing in the game, since the uninformed would never miss it and the informed are just put off by it? However, I guess I stopped being amazed/disappointed by dumb stuff like this way back in the Nintendo days when they put out the "1943: The Battle of Midway" game - I mean, c'mon