I think it depends on both parties, I was married, but the split was definetly not amicable. If you can be civil to each other it works.
I have a friend, who is very much like you with her ex, although they werent actually married, they split when their daughter was 2 months old, they get along great now and are like best friends, she lets him see their little girl as often as he can as he works stupid hours, and he helps her where ever he can, its nice to see, they have been split over a year now, and they are still keeping it amicable, she now feels like she got the person she knew before back. He left her basically everything, apart from his car and the new tv he had just bought, but left her with the old one, so she was short of nothing, and is always asking if his daughter or her need anything. His family still buy her birthday and christmas presents, and her family do the same for him.
Overall, although it didnt work, everyone is still happy. Thier little girl will grow up happy, and have no arguements from parents or feeling of being torn. I am not saying every relationship ends this way, but i think the world would be a better place if it did, my relationship, in fact my marriage ended very badly and we will never have any kind of a relationship, so therefore it will be harder. I am not saying you dont need to keep your eyes open. I should also add she now does have a new partner, and him and her ex get on quite well, so all is well. And as to making light of divorce, i think you should do whatever makes you cope with it better. I went a bought a couple of cakes, ate them, had a cry and came on here. I dont think divorces should be messy and nasty, and i think their should be "no fault" divorces, where you can just put it didnt work out etc, rather than that someone is to blame