Oh no!
There was a crazy debate about this earlier and I think we all decided that a demo level or two should be included to show the features of the REV, but they should be unrelated to the actual game (e.g., sword-fight with a soldier, fishing mini-game).
If what that sight says is true, then the controller can be used throughout the game.
I must say that I am very excited at the prospect of playing Zelda with REV controls. I was going to play the game at least twice anyway, but now I have a great reason to do so. Playing my first time through with regular Zelda-esque controls, then playing the second time with REV controls. It's a win, win situation.
One more thing: Does anybody remember the part in the E3 trailer where Link rams his shield into the head of a Stalfos? What if, secretly, that move was done by the REVmote? I know its far fetched, but I can't help think its possible. Many people have came up with different control methods for Zelda REV and every single one allows for Link to directly control his shield. So thrusting your shield forward is definitely an option.
Anyway, I think I'm reading into this stuff way too much.