The only complaint I could see as being validish is that supposedly in Star Wars canon, the plans were stolen by a guy, not a girl. While I swear this was the case, I did a brief look at wookiepedia and I can't seem to find anything that says this.
Even if canonically, it was a guy who was given credit for stealing the plans, maybe he was just the leader of the team, and the main character in this story is just a major player in the events who they are following. Kinda like how the rebel commanders are glossed over in the original trilogy.
ETA: After a little more research, it seems that the expanded universe books present a couple different scenarios for how the plans were stolen. One is that they were stolen from a base by Kyle Kataran. In another book, the rebels captured and altered a bunch of communications equipment and used those to intercept the plans. The original trilogy opening sequence says they were captured during a battle.