What a bizarre contention. Music theory doesn't entirely explain the natural world either, yet I've never heard it claimed that therefore we should all believe in God.
Flew made it quite clear that the God he believes in is a distant, non-interventionist deity nothing like the Christian God and that his "conversion" more relates to the Aquinas-style first cause argument and doubts about abiogenesis than any doubts about the evidence supporting evolution.
I personally never heard of Anthony Flew before he decided he believed in God so it really doesn't matter to me what the man believes in. I was responding to another post about him. I in no way think that what Anthony Flew believes or does not believe about evolution changes anything. Others may - I don't.