No hero’s journey for Harry?

I was wondering what other HP fans on my flist think of this article:

http://news.yahoo.com/s/csm/20070725/cm_csm/ysawyer_1

“J.K. Rowling’s towering achievement lacks the cornerstone of almost all great children’s literature: the hero’s moral journey. Without that foundation, her story – for all its epic trappings of good versus evil – is stuck in a moral no man’s land.”

Personally, I feel it’s dead wrong, but I can’t quite put my finger on why.