The point of my post was that the site that you recommended talked about vain repetitions of prayer. My point was how many Christians are taught to daily put on the armor of God and visualize and go through the motions, of actually doing it. Any prayer can become vain any daily activity can become vain and repetitions. At the end of my post I stated that I use the prayer as a guide and add to it as the Spirit leads. I believe another person had done a book on the Lords prayer and turned it into a 60 minute outline call Can you not tarry one hour? Did they vainly say to pray repetitiously? No they used it as an outline for a deeper prayer life.
Any repetitive formula is a bad idea. And yes, even the Lord's prayer could become that. And so could putting on the armor of God before going into spiritual "battle."
But the problem I see with the Jabez book is that it doesn't even start with a good foundation, and deviate off the path. It's all magic formula pulled from the hat of Bible history. I could just as easily see how you once prayed for an increase in your herd, and it increased, and write a book on the specific words you used and how saying your prayer phrase non-stop is the key to all blessings.
It sets people up for failure because sometimes God may not materially bless a holy man who says it making him wonder about what's wrong with him -- because of course the prayer is perfect and works for everyone else.