It's difficult. On the one hand, everyone will approach a work in a different manner and get different levels of appreciation out of it. On the other, though, there are prejudices and opinions which are detrimental to the critical appreciation of some games which *will* stand in their way.
Nothing will ever top OoT on average scores, I think. Not because games are *worse* these days - far from it - but I think that gamers have got more closed-minded. We have our archetypes, now, and straying from the archetypes will piss off *someone*. But then sticking rigidly to them will piss off someone *else*.
OoT was the last great game released at a time when the majority of the gaming audience were sufficiently receptive to new ideas; 3D console gaming was still in its relative infancy, and this was a new take on an old idea. Skyward Sword is going to suffer - not because it's bad, but because it's just a bit too *different*. And I don't think that's a good reason to mark a game down, but it *is* a reality of the gaming audience.
The opposite's also true. Uncharted 3 is a great game - but it's a bit too *similar* to what came before, so it suffered as a result with some of the reviews. Some of the audience, though, are perfectly content with More Of The Same. UC3's brilliant for them.
I think there's a distinction between "Will traditionalists like this game?", "Will people looking for new experiences like this game?" and - criticially - "Is this a good game?". And the best reviewers review relative to the final question by ORing their thoughts about the first two - but that requires them to have an understanding of both mindsets, and many don't. I certainly don't, for one!
However, I do believe one thing, one critical thing from the reviews I've read: Skyward Sword has *moved the games industry forwards*. Is that something you should mark on? Hard to say. But it's certainly a criteria that interests *me*, personally.
Edit: As a quick other aside: I reckon Feep loved the game, he's just being cagey to mess with our minds. His phrasings of protestation are a little *too* carefully worded