Lots of people talk about how "nice" the family in this show is, and that's certainly its most striking feature. Even those who like the show will probably concede that the family in the show is "nicer" than almost any family you'll find in real life. I suspect that the people producing the show were motivated to create an idealized family as a role model, rather than a "real" family most people would recognize as familiar. Whether you enjoy seeing an "idealized" family or whether you prefer something more realistic is a matter of personal preference. I personally don't feel there is anything necessarily wrong with unrealistic. Is "7th Heaven" any more "unrealistic" than "Friends" or "Seinfeld" or "The Phantom Menace"? Personally, I don't have a problem with "nice" characters, but I do have a problem with "nice" story telling.
In a well written story, be it a TV show, film, novel or play, you have a character faced with a series of seeming insurmountable problems. At some point in the story, the character will generally feel overwhelmed by the amount of stuff they have to deal with. There's an escalation of tension in all good story telling. An element of chaos.
I find that missing from "7th Heaven". Solutions to problems are thought of the moment the problem occurs. The solutions are instantly implemented. Problems never pile on or overwhelm the characters. Everyone is in touch with their feelings, and can articulate whatever they feel. No communication problems exist. Everyone gets along just fine. There's no escalation of tension in a "7th Heaven" episode. In an effort to create a nice tone and positive role models, they have robbed their stories of all tension and conflict. They've made them dull. Nice is OK but dull is not.
