I don't understand that, because I think that what people like most about the show is that they recognize themselves in the characters and their problems, so the more believable the family is, the more we can draw the audience in.
After 9/11, we realized that all these silly culture wars, and arguing about rock lyrics... who cares? You know, we, for some reason, remembered what our real problems are.
The usual comment from psychologists and psychiatrists was that it's best not to encourage people to look at their dreams because they are liable to stir up problems for themselves.