What am I going to do about it? Laugh at you, just like majority of the sane people here. I'm going to get Zoo Tycoon but if the review isn't up to par, I'd still buy it. Why don't you buy Knack and do a review about it?
Well just looking at one review here: "Playing Knack is like watching a dull movie on a plane – it's tolerable if all you want is a way to pass the time, but it's not something you'd seek out for its own sake. I finished in about 11 hours and, challenges, co-op, and secrets aside, there's just not much here worth recommending." -- IGN
You know if you're going to throw out humongous chunks ( challenges, co-op, and secrets )of the game to score it, that's not really being that honest about its merits.