So in the past I've worked 33h/w instead of 38.5h/w. Soon I'll go 35h/w to get an afternoon with the kids or some time for a workout. That will make me more likely to divorce? I think the opposite is the case.
But if you're only pulling $25/hr cutting out 10 hours a week is a significant dent in total earnings.
Plus you have kids, and workout -- both uses of your time that I'm sure your spouse probably approves of. You're not working 30 hours a week and then playing competitive Yu-gi-oh for another 30, non?
But also the article says it's not about the earnings at all. But then also talks about widening the husband and father role, which is not done by getting more man into full-time, quite the opposite.