I think last time we had this discussion, it was about The Giving Tree. Some people misinterpret Shel Silverstein's intention, but that's not because he wrote sloppily - it's because people tend to read through the lens of their pre-existing world-view.

In other words, I think Gaiman, like Silverstein, was perfectly clear, and understood by a great many readers, but when you are widely read, there is always a percentage of misinterpretation. Anyone who is half bright and has read enough Gaiman knows that the so-called "authorial voice" varies so widely that either he is a very talented writer with an excellent imagination and good empathy and expression of variant viewpoints, or he is schitzophrenic.

I think my sympathies in this matter are clear ;)