I agree with this, Nintendo has often been conservative towards changing forces to the games industry, and not always is this a bad idea. Sometimes, we really do have to stop, look again, and think about whether what's being done is right for everyone. In the case of achievements, I believe that the benefits have become too standardised, numerous (i.e. controlling of the way we play the game since it's more likely to be socially wrong if we don't get the achievements) and artificial.
It seems to me that Nintendo prefers designing games from the ground up to reward players internally rather than giving named trophies at 30-40 points in a single game. I think that, like when you've gone without food the whole morning a big lunch tastes all the better, a proper trophy at the end of the game, without all the little sparks beforehand, can be more surprising and rewarding. Or at the very least, not every game should have the same damn concept applied to its achievements. How much more boring could it get?
The trouble is, Nintendo's design philosophy is hardly a consistent thing in their games. Especially since the Wii and the DS have become very kiddy in the kind of games that they're turning out (even compared to the Gamecube's games, and that's saying a great deal), I would describe very few of them as more than mini-games. How can we consider mini-games rewarding in a long term kind of way? Sure, the argument remains valid but gamers should be careful to note who's selling it too.
I'd say we should see more big, fat adventure games packed full of secret Easter Eggs that require not just the player, but the DESIGNER, to think, create, earn and enjoy. And so far, no company has put their money where their mouth is when it comes to this. The industry seems to be more content with making us hungry for more games than with providing games that truly satisfy us, and this should be a cause for outrage.
Just as the internal rewards fail, the current achievements system as we see on 360 and PS3 is rising, and how does it look really? Too safe, too easy, and too bite sized. We should note that the points in the Live system have become as irrelevant and worthless and imbalanced as the ranking system with PS3 trophies. Why do they even exist? To make money. To create another addiction factor in the games. I feel that in taking this approach and standing against artificially addicting motifs in game design, Nintendo is taking a stance full of integrity (which is rare for them).
If Nintendo does the consumer a favour, we really should applaud them for it. It's not like they do this enough, but you start small with this sort of thing and respond the right way, and you might find a real healthy change for the games industry in the future.