I haven't watched the show but I understand what you're talking about.
For example, I was and still am a big fan of "Caprica" but I admit that it could have used a little joke or laugh here and there. I can pretty much say with confidence that from the 20 episodes that were made of Caprica there are less than 3 or 4 slightly humorous lines I can think of! LOL
At least BSG had some comedy which was used sparingly but it was almost always effective.
My wife got me to start watching Friday Night Lights. Same problem. "Why are these people always miserable?" They seem to thrive on just not being happy, no matter what! LOL
"Intense" is good, but it's got to be tempered some.