Once again, I'm going to accept your point here--it can get dangerous to assume 'motivations'.
In partial mitigation, I would invite you to make an analysis of a few of these evolution/creation threads. It is rare (and I think it can be demonstrated) for someone arguing the Creationist side to engage with issues of science, but it is (sometimes tediously so) common to find someone on that same side object to evolutionary theory solely on the grounds it is contrary to some specific reading of Biblical Genesis. And I have yet to hear anyone propose, from the other side, that they hold evolution to be more probable on the grounds that it is superior on theological grounds.
Religion is religion, and science is science. Science cannot, and does not seek to, address supernatural matters; why do some religiously-minded folks ask it to validate what they hold to be spiritual truths?
I am somewhat of a naturalist, but I must disagree with you here. As the writer of the article points out, understanding science makes one less dependent on myth and superstition. One man's myth and superstition is another man's religion.
I completely agree that evolutionary theory has reached the status of scientific law. I also think that the "intelligent design" movement is a step backward as far as the progress of science is concerned.
Nonetheless, I keep thinking back to Ben Franklin, when he said he regretted not living a hundred years into his future so that he could see all the wondrous things the discoveries of his day would yield. Personally, I would not want to live a hundred years into the future from today because I see very little good coming out of mice with human brains and terrorists able to make nuclear bombs in their basements.
It may be that the only thing standing between civilization as we know it and a society made up of genetically perfected clones created by scientists is myth and superstition. And so I am conflicted. I'd like to think that the positive side of human nature will prevail when it comes to the application of science, but I have my doubts.
The scientists may well be freeing society from the burdens of superstition, myth and fairy tales. But they haven't really thought out the cultural implications of spoiling the glue that has held this civilization together for several thousand years, A lot of good has come out of the fear of God, and we ought to be somewhat less inclined to pull that rug out from under our society.