I would agree that both parties should work on it. I don't think chaz was necessarily offended at the statement, but I do think he makes a perfectly valid point. While the husband in the scenerio you offered did seem to be cold-hearted, I don't think it's fair to assume that it's entirely the husband's fault.
I know I get upset when people place blame entirely on one spouse, without looking to see if they themselves could improve. I'm not saying the husband you described was right to be the way he was, but nor is it fair to say he's just being a jerk, without knowing the entire circumstance. When my husband is upset, he has a tendancy to shut me out until he's over his anger and can talk about it. And if all I do is gripe, nit-pick, nag and get all emotional while he's trying to cool down, it takes him even longer to sit back and think about his own actions. I've known couples where this can go on for days and days, with nothing but resentment between the two. The husband resents the wife for whatever act caused him to get upset in the first place, the wife resents the husband for being distant, the husband resents the wife for being emotional, and then when the husband wants sex, the wife is too upset and feels like she's being used.
BOTH parties are wrong, in this case. Now, I am sure there are marriages where the husband is just distant and cold, and it seems nothing the wife does makes a difference. But, with the little bit of study I have done, I've noticed that there's always something that can be done to help the husband. Even if it's as small as not nagging.