Agreed. Movies are an entirely different medium, and the story has to be adapted. FOTR, the movie, is as much PJ's art as JRRT's.
The main thrust of the article is that the movie does not convey the conservative, traditional Christian framework of the books sufficiently. I agree, but am not an absolutist - besides, it's SUCH a fun flick!
Looking forward to posting the article in full when its available (probably a couple of weeks) so that we can dissect it.