I'm not a Duggar fan, either. But the message about the male and female role in a marriage is spot on, although there's no absolute male domination involved. The rules of dating and courtship are right on, too. And Mom Duggar's advice is right on. Love and Marriage are sacrificial in nature. Both man and woman sacrifice themselves for love of each other. Sometimes, you might be tired, but the other spouse wants to be romantic, you sacrifice for the other.
I've lived my marriage both ways, and it works so much better when each sacrifices for the other's benefit. Things run smoother, things get done better, there's less irritation, and more cooperation. Being submissive to your spouse does not mean you don't have a say. You give your input and advice on whatever the dilemma is, and come to a decision.
Do you think, if the Duggar's message is so wrong, that more than one child would have been caught up in this problem? I think Josh had a psychological problem, and they discovered it (the wrong way) and dealt with it (the right way).