Actually, Young Acampa ;D, dual wielding can be of very MANY styles, ONE of which is one saber being standard length, the other being a shorter length.
There have been jedi of the past to dual wield, one being a standard length saber, the other being a Light Whip, for example.
So in his reference to dual wielding, he is correct. Dual wielding merely means the use of both hands on two different weapons. :D
Now, come to the Dark Side young Acampa and see the TRUE power of the Force. ;)