You realize Skyward Sword is the game it is because those motion controls are seemingly integrated into everything you need to do right? Can't just give it "proper controls" and call it a day, they would have to redesign basically everything. Enemies, bosses, items, puzzles, movement mechanics, you name it, it would be a whole other game.
Also, Twilight Princess already had your "proper controls". And, this is like the third thread about this very same thing already, which makes me doubt you are actually serious and not just taking a piss.