I understand that a blind woman winning a swordfight seems un-SMA, but it's a low fantasy setting...not a no-fantasy setting. We have undead, monsters, nobles who can't die, daimons, and any number of things that seem unrealistic.
The idea of it being against game-mechanics, I don't care so much. So long as this is an isolated incident (that Queen Alice isn't constantly swordfighting and doing things that require eyesight), then it can be chalked up to fluke/luck. It's up to the player of Alice to police themselves between the RP and the character's ability, but an occasional setup for something interesting is always welcome.
If it really does bother you, spread the word that Alice cheated and had a mustachioed double fight for her after poisoning her opponent's morning wine and sacrificing babies to the Zuma for ethereal aid.
