Before CoD was ever released, Medal of Honor tore World War II games a new one, and no matter how good the games based on WWII, there are TOO MANY of them.
Incorporating some of the lesser known WWII battles into a game would be neat, but most gamers wouldn't respond well to that. They want the big action set pieces.
A guy for Forbes mentioned that he likes the game, but he feels like it's nothing special for CoD in general. Fair enough.