“grand assertions of overwhelming certainty are claimed for “Evolution””
Actually the exclusion of abiogenesis from the theory of evolution is important. Evolution is change in the heritable characteristics of biological populations over successive generations. Evolution is supported by observations, an overwhelming number of observations in biology and paleontology.
“Actually the exclusion of abiogenesis from the theory of evolution is important.”
But not necessarily possible - some see it as a problem:
http://www.freerepublic.com/focus/news/3561255/posts?page=40#40