I agree to an extent (though I disagree on 2).
My main gripe is one you didn't mention, though - I would love to see a Zelda game where Link was not the main playable character, Zelda was. This could easily solve #1 in the process, since her play style and range of moves and items would probably be very different, and would probably lend itself well to some real brain-bending dungeons.
Also, I haven't played Skyward Sword, but I'm reluctant to come down too hard on Nintendo for #4. Twilight Princess is nearly a decade old now - by 2006 standards, its world was pretty rich for an action/adventure game. Zelda U needs a lot more than that, obviously, although I heard a while ago that that's part of why it was delayed.








