Yes, because they're beside the point, which is that the stickers which are (once again!) the subject of this post in no way constitute an "establishment of religion." I'm not religious at all and I wholeheartedly agree with the statement on the stickers. In fact, I daresay that to assert that one should not approach evolution (or any other subject) with an open and critical mind is to fall into religious dogmatism.
They are exactly the point - you claim that these stickers call for an examination of some presumed inadequacies in the theory, and yet when questioned about said inadequacies, suddenly there's the sound of crickets. You'll have to excuse me if I, in turn, presume that these supposed inadequacies are merely a fig leaf to cloud some deeper purpose behind the stickers. Feel free to disabuse me by citing one or two difficulties, however.