There was an interview for this matter. The game makers claimed that if the game is really controlled 1:1, you won't be able to play it due to lack of real-life swordfight skills. TL;DR, you need to be an excellent swordsman to play this game had it been 1:1.

I wouldn't be wanting 1:1 lightsaber duel if I were you.

Still, if you want to see the true work of 1:1, go into the sword upgrade shop, look at an upgrade, and press A when you point at the sword. You'll be brought to a screen where you can preview the sword, and move it in accords to the movement of Wiimote. True 1:1 lies there.

Perhaps you never understood what I really meant.

1:1 swordfighting is only for real life swordfighters, period.

You could dumb down the AI, but then, it's still going to be difficult, you have to swing as hard as you can, time your slashes, etc.. As what that other person said, if it's truly 1:1, dojos would use this game to train their disciples. Go figure, no?

E.g; For a backstab, you would really have to imitate that backstab move, which is quite hard to time.

WSR swordfighting is easy because what you have to do is only swing the Wiimote around.