I like having some accommodation to history in the game. I don't see it as a straight jacket. I obey orders and carry out my assigned patrols - like it or not. I also stay on station until I get another assignment, so I never get to see the big battles (Orders - now there's a straight jacket for you).
That said, I do have a pretty poor knowledge of the Pacific campaign, so RSRDC isn't going to spoil anything for me. I'd be as surprised as anybody if I ran into a big fleet in the Coral sea in May of '42.
I happen to like RSRDC because when I do encounter a memorable target, I can look it up later and often find out just what the hell that was all about. Someday I'll grow out of it. For those who actually know the history well, I can see how devotion to historical facts might seem a straight jacket.