I agree some games seem to be like movies

That is despicable. If the Wii game is anything like the DS version it will be impossibly easy. No one needs to skip through that game. What ever happened to the satisfaction of a job well done. People are getting lazier by the second. Books that read themselves, surgery to suck the fat out of us, and now games that play themselves.

Man up and do something without a machine because as you use it, it uses you as well.

The issue with your whole "organic progression" argument is that some skills take much longer than a single game to develop.  For example, I can jump into just about any PC FPS and do very well because of the skills I've already developed.  However, the only way to develop those skills is a bunch of time committed to doing so.  One game isn't enough.  If certain parts of the game require that sort of skill, it's going to be very difficult for a new player to overcome it, period.  However, that game's never going to be challenging to me without parts like that.

Likewise, the correct thinking required to solve a lot of Zelda puzzles takes many games to develop.  I struggled with certain Ocarina of Time puzzles a lot when I first started, and I'd give up until my older brother got through them on his save.  My point is, some things aren't learnable in the span of a single game if it's going to be even remotely challenging to seasoned players.

Now, that said, Nintendo has been addressing this lately by making all the challenging parts optional (stars past 60 in SMG, Cave of Ordeals in Twilight Princess).  The other way to do this, of course, is to go the route they're choosing now.  I don't think you're right in that the whole organic progression is good enough on its own.  Because, it's impossible to address the issues of every player through it.  What the developer may think should be easy for everyone, or at least straightforward may not work for some.  By having it play for them, it makes sure its impossible for players to become frustrated very early on, and give up before the game gets started.  In my experience, the first big area where people give up is in the first 5-10 minutes of each new game concept because they simply can't understand it.  Again, this makes sure that doesn't happen.

Condensed: The whole organic progression thing is imperfect because it ignores skills that need to be built up over multiple games (adjusting to a camera in 3D games, FPS controls, etc.) and because it can't account for all new players issues.  This idea of Nintendo complements it by making sure the game never becomes so frustrating that it's no longer fun (where that is for you, me, and someone else is entirely different).

Ok, time for my two cents, which given the value of the dollar, will result in a delisting on stock markets everywhere:
1. If the AI can play through levels, if players pick to allow the AI to step in, then how about we go for a Left 4 Dead mode in the next Mario game? You can play with up to 3 other computer AI players.
2. If this can be toggled off, and players pick a hard mode without it. What is the problem?
3. It looks like a party game platformer. Why is this a problem to implement then?
4. Why does how other enjoy their game matter to you? What do you care or think to know what other people want? Since when does someone wanting to play a platformer differently than you do mean they are "robbed" of anything?

Ok, I am also reminded of whining back when Sega included a strategy guide (it was taped up, and you had to remove the tape to use it) with their RPGs. People complained it "robbed" them of the experience playing the game, so Sega decide to pull it to please the people complaining, and saved a few bucks by no longer including them with their RPGs.

Well... I guess that for the speedrun community and speedrun lovers (as in the fact that you watch someone else play the game good) this could be quite good.

As for gamers trying to find satisfaction playing a game, not too sure.

I already knwo one game that might implement this technique "Metroid:other M" I know thats going to be a challening game lol "Team Ninja" U bet...

The speed run community will not benefit from that. It's most likely going to be a slow AI that shows the player what he should do not the fastest way to finish a level.

Yeah, I know. I only wanted to focus on the next part of my sentence, just the fun of watching someone else play the game for you. I guess I didn't express myself in a good way, haha! =P

Imagine if there was a system like that in RPGs... I would definitely love that!

lol WTF? So you can now buy a game and when it starts to get hard let the computer play it out! Where's the challenge in that?

I see what they're trying to do by helping noobs out but come on. How else will they learn.