They probably aren't impressed because they compare it to romanticised versions of their favourite previous instalment and then to other genres of games (probably Skyrim in this case which it will probably not be that similar to) rather than judging the game as a stand alone game. Not everyone...
Personally, I'm not very picky with games and I've never not enjoyed a Zelda game. I may be mildly disappointed if my favourite item doesn't turn up or something, but I'll probably be too busy enjoying the rest of the game to care much. Unfortunately, all your examples seem familiar and it...