is there such a thing as too much homework?

I was always in the camp of parents that answered a loud 'No' to that question above (especially since I don't have to do homework anymore, one of the perks of being a grownup). But theatlantic.com writer Karl Taro Greenfeld makes a strong argument about whether such an overload makes sense and its effect on children enjoying their childhood in this article titled 'My Daughter’s Homework Is Killing Me'.

How much homework is too much? Do teachers coordinate with each other so that there is a reasonable load for students to manage - if you have two finals this week, should you really prioritize a craft project? What are thoughts on this and the article above?