re: Charles Darwin himself had fallen into that trap. He wanted to build his reputation as a biologist before touching the dreaded question of evolution
I'm skeptical of this claim, but I imagine that you have a much better grasp of the issue. Again, feel free to disregard my comments.
"Mind the gap: did Darwin avoid publishing his theory for many years"http://rsnr.royalsocietypublishing.org/content/61/2/177.full
"It is widely believed that Charles Darwin avoided publishing his theory of evolution for many years. Many explanations have been proposed to identify Darwin's reasons or motives for doing so. This essay demonstrates that Darwin's delay is a recent historiographical theme for which there is no clear evidence, and indeed is overwhelmingly contradicted by the historical evidence."
"Ten Myths about Charles Darwin"http://bioscience.oxfordjournals.org/content/59/9/800.full
"A third long-disestablished myth is that Darwin avoided publishing his theory for so long because he feared backlash from the religious establishment. In fact, he was much more concerned about criticism from the scientific community after having seen the reaction to the anonymously published Vestiges of Creation in the 1840s (Secord 2000). For a more plausible explanation of his delay (during which he was working all the time to gather information and refine his arguments), see van Wyhe (2007)."