Not to me, either. They were absolutely beautiful. Unfortunately, their mom was probably insane. If it's all an act, she has been playing a starring role for years, now. :( While a proponent of the death penalty, I don't believe civil societies should "fry" the insane.
And just for the record, I also wouldn't stay married to anyone who gave me "three" hours off a week, and followed some kook who believed that women were inherently more evil than men! He could take his gym and shove it!
A lot of women don't get one evening a week off ---I don't know if it's grounds for divorce if a man doesn't arrange for 2 or 3 evenings off instead --but it certainly isn't a reason to have killed those darling babies. I think he just got bogged down with his dream of a traditional family and was working hard to achieve it and failed to realize what she was capable of. He's still in denial or stuck on that "until death do we part" deal he made with her. He should have left her and taken those kids away far away from her but I think he didn't predict that she would do what she did.