I suppose it's a matter of taste. There are a lot of people here who really like the unique lore and style, and I accept that. I think it's something that should be retained, but my personal preference is for Skyrim to be an at least partly familiar landscape. I'll be happy if it also throws up some surprises but I don't personally want to feel like I've just landed on a bizarre alien planet. I'd leave that to the sceince-fiction genre. Maybe TES attracts people more of that crowd than traditional fantasy?
I have do disagree on "Maybe TES attracts people more of that crowd than traditional fantasy" part - Oblivion went "traditional" not because of the fans, but because of the team and it's leadership - as I sad Haward is practically phobic of high fantasy judging by his interviews, so I'm not surprised that being the head of the team he pushed everyone to "tone it down".
Oblivion was a success, because of the long like of factors, starting form it's amazing graphics and ending with a general significant increase of people who play computer games since Morrowind. And added to that Morrowind created a "legend" - a good portion of old time gamers swore that it's the best thing since sliced bread, and that heated up the interest to it's "progeny", people who did not play Morrowind because it's to old had an interest in the hyped series anyway. So the overall success of Oblivion is largely based on steady and firm popularity of Morrowind, that persuaded many to check it out.
And a lot of the old fans found Oblivion to be rather bland lore wise... Even some of the new once who did not see Morrowind at all where disappointed, without even having a point of comparison.
Having sad that, I don't mind a bit of familiar - imperials are there to provide that influence - Caldera in Morrowind looked almost exotic when compared with the rest of the land But "familiar" is a complex concept, if you visit the cold parts of the globe forests, of for example north of Russia are very different from Canadian once, even the trees are not the same, so why would Skyrim have similar foliage to the north of America of all things? It's simply not logical and makes the impression of a rather "narrow" view of the world on devs part.