It is what it is. I personally liked the fluidity of the animation, reminded me of a Ralph Bakshi cartoon.
That said for commercial purposes it's undeniable that the non-cartooney 3D Zeldas with a grown up Link have simply sold a lot better than the two than were cartoony (Wind Waker and Skyward Sword) and that's fairly hard to dispute.
At this point I'm just going to enjoy my Wii U. I know it's not going to sell 20 million+, if even that, but there's some good games and I give Nintendo some points for at least trying some surprising things like Spaltoon and funding Devil's Third.