I really do agree with you about Matt and Amy... They probably are well suited to each other... because of their personality differences.. They can help balance one another..
As for Zach being hard on his dad... and sometimes Jeremy being obstinate with his mom... I mostly see it as normal teenage rebellion. I think Matt expects too much out of Zach...and is forgetting that he's only 16.. Case in point is the little people's conventions... and he's always pushing Zach to meeting girls.. I've seen Amy and Jeremy going at it this past season..(jeremy does it in a quiet way) about school things.. being responsible about stuff and I recall the time Jeremy didn't want to go to soccer practices.. I agreed with Amy that once you commit to a team, they are counting on you... and you need to be a team player..not just a 'if you feel like it that day' team player. (my words and general idea she was trying to convey to him)..
I get the feeling that these are normal teen issues with both the older boys. Heck, I can frustrate the heck out of my kids at times... They say I nag... I tell them it's my job...
I haven't seen Molly stir up any ruckus... She seems to be well grounded or perhaps just people pleaser.. Maybe she's still too young. Not sure how old she is at this point.. I'd guess 13 or so... I am sure her time is coming to have the teen conflict stuff with her parents.
All in all, I still think this family has tremendous heart with good intentions and alot of love for one another..
I hope they hadn't overdone a good thing by trying to do a second season.. I would think it would be alot of pressure to have those cameras on and around you so much...