I think the waggle on the new Sonic games is different than the waggle on Zelda TP. In Zelda TP, you did attack with your sword by waggle, but that is only one weapon in your arsenol to use against the enemy. Plus, the game is slow paced, so you only need to flick your wiimote periodically. Boss fights used often required more than just the sword to defeat them, so it is more than just a "waggle fest".
Now keep in mind that I haven't played this game, so this is just what I have deduced from reading. I can see this game as Sonic running around very fast (after all, that is what he does) swinging his sword around (a lot) and killing a bunch of enemies that way. How are bosses defeated, probably by hitting them with the sword multiple times.
Now if that is the case, I can see why someone would complain about unnecessary waggle; I would.
