Am I the only one who fails to see how anyone gives a shit about a fictional character being right handed or left?
It's more or less the fact that it's annoying that Nintendo would reverse an entire game from how it normally exists because they wanted to push a completely useless and tacked on feature. Sorry but the sun rising in the West is the dumbest shit ever. Not only that, but anywhere Hylian is written, it's all mirrored as well. It's pointless.
I'd rather the game just be a normal Zelda game, with a left handed link and correct world, as opposed to forcing motion sensor shit down our throats. But, from the sounds of it, they want they want the sword fighting to be more like the "sword-play" from Wii Sports Resort.
Honestly, I wouldn't even care TOO much if Link was right handed for the game as long as they didn't flip the world again.
But as for other reasons why people care, aesthetics, man. People are used to things, and it's always been very clear and often said that Link is left-handed. To just go and change that, while, obviously isn't going to really have an effect on gameplay, still is annoying to LOOK at.