I think part of the problem has always been calling them IQ tests. If they predict X (say, success in some given profession), perhaps it can't be argued with. It just doesn't follow that it predicts "intelligence". I guess if they claim to test intelligence, they try to limit people to some inherent trait. Like they could never become good at profession X, because their intelligence simply isn't sufficient. In reality there might be lots of other reasons why some people tend to do worse in profession X than others. They can still be predicted, but a prediction is not necessarily a final verdict.