Is GTD a cult?

I read about 60 pages into Getting Things Done: The Art of Stress-Free Productivity, and I got bored and gave it up. After hearing such strong claims for it, I figured I would have gotten some insight after a while. Oh well, what can you say about productivity anyway? Do your job as best you can, try to fix things if you can, keep your files organized, let your coworkers know something if it's relevant to their job. How much more is there to say? Maybe these types of books just aren't for me.