I get Pat's complaint about the Artorias Sword, and I agree it's another one of those things that might be a little heavy handed at this point.
But, at the same time there's no real reason why that sword couldn't have been carried down over thousands of years and I liked the touch that it somehow attracted left hand wielders.
The other thing is in terms of game content, there is really no other sword like Artorias's swordl. I mean to those of us who have played Dark Souls 1, yeah it's the thing, it's cool and so on, but for people who didn't play DS1, I definitely see it as being a cool strange thing they hadn't seen before, I also liked that it's called something different.
So Pat has a valid complaint in the context of all the other DS1 references in DSII, however the sword on it's own, is not nearly as bad as other throwbacks that are in the game, honestly if DSII had very little to no references from DS1, that would actually be a really cool thing to add in the DLC.