Evolution is problematic because it is based upon a metaphysic that is “materialist” in orientation (i.e. that matter is all there is, was, or ever will be). Not only is it problematic for the pagan — because it supposedly provides an intellectual framework for atheism — but it is even more problematic for folks who try synthesize or blend Christianity with evolution. It seems rather simple to me to see why this should cause problems; it should cause problems because Christianity is based upon the belief (or metaphysic) that there is more than matter, that there is a Creator who stands above matter and in fact created matter. This means that the ground for Christian thinking is necessarily at odds with the basis of evolution. All the Christian is left with, who tries to synthesize evolution and Christianity, is a hybrid view that resembles neither what evolutionary thought looks like; nor what the Christian basis depends upon for thinking through issues of origins of life and creation (and natural history).
I understand why guys and gals who are Christians and academics are drawn to trying to engage in this kind of “synthetic” work; I just don’t think it is really tenable, given the mutual exclusivity between the two “competing” paradigms (of evolution and the Christian understanding of origins and the Divine fiat — i.e. that God creates ex nihilo, or “out of nothing”).