Don't worry, they'll have plenty to panic about as the season goes on
Episode 7 and 8 were great, and when Marty had to shoot Mason to save Wendy that was the first time I truly felt sorry for him.
But even apart from that it's obvious to me that he struggles to be the fixer
and the motivator, and it looks like Wendy is becoming the more resourceful and pragmatic one - which, from a family point of view is actually a good thing because marriage is teamwork.
They have to do whatever it takes to survive.
But it also makes me wonder if the means always justify the end. They leave a trail of death and disaster wherever they go and maybe agent Petty had a point when he suggested that at least their children deserved a second chance. After all it wasn't their decision to get involved with the Cartel.
Not that I trust Petty, and in fact Marty
had given them the opportunity to start afresh, but OZARK needs
some kind of wholesomeness (genuine or not) to balance things out.
Either way, it's fun and extremely entertaining. Even those dastardly Snells no longer see eye to eye, and like you said it also becomes a bit more soapy.