I really think that point is being played up for in the ads. I think that when the movie comes out, it's going to be set-up like that at first, but both sides of the family are going to fall apart because they're not a unit. That like a super-hero team, everyone in the family has their own abilities (aka super power), and that's what makes them useful.
That just because Bob isn't the most nurturing parent, it doesn't make him an awful father to the family, he's there to help and support his family while loving them and that's what matters, and when Helen needs help in her super escapades after something major goes down, it doesn't make her a bad super or keep her from being a feminist icon, she's trying, but everyone needs help at some point in their lives, especially in such huge undertakings. It just shows in brighter letters what we learned in the first movie, that "No Man is an Island" just in broader strokes this time and in different circumstances to show it still applies.