The problem I have always had with motion controls is that the priority thus far has never been to have a game with precise controls. The goal is more to make controlling the game itself part of the fun. That sort of thing is thrilling to some and annoying to others. Nintendo used to be Mr. Precision when it came to controls. Nintendo games did not have floaty or wonky controls. You pushed left, the character went left. You pushed A, the character jumped. When they had digital controls it was tight. Later they introduced analog controls and from the very first game, precision was there. In Super Mario 64 the speed Mario moved at was reflected in how far you pushed the analog stick and it felt right. Tight, accurate and precise controls are part of making a quality game and Nintendo was on top of that. It is no different than how Nintendo games are not buggy and Nintendo hardware is strong and reliable.
I remember the first time I played Wii Sports golf. At one point in the process of getting the remote into the "down position" my Mii raised the club and when I raised the club he did the downstroke. It was literally up being down and down being up. I couldn't help but think "what the **** is this bullshit?" That experience was a good impression of the Wii as a whole - fighting the controller. Now the idea is that waggling the controller is "fun". But I know the trick. I know it's just mapping a button press to a shake and the how hard or soft I do the shake is completely irrelevant. I know the trick, it doesn't work on me, so I just want the button press so I can play the game without Mario spin-jumping when I don't want him to.
If there are issues with discerning between a bomb roll and a bomb toss, well, that's the whole damn point! That's why motion control sucks! That's why I hate it! For Skyward Sword to truly impress me I have to think "man, I would not want to play this game with regular controls in a million years." The second my waggle is misinterpreted I'm thinking "****, I wish this was a button press". Never ever even ONCE in the game should it make me think that. When playing OoT, when I pressed B, Link swung his sword. He didn't roll into lava or anything like that. I don't want to have to fight the controls. I have no patience for that ****. And I shouldn't have to. Responsive controls are the responsibility of the developer and if motion control prohibits this it should not be used.
After about an hour of play I should feel like I am effortlessly controlling the game without any fear of the wrong action occuring.