People have lost the distinction between primary and secondary causes. Cardinal Newman had no trouble with Darwin's theories since he conceded to science the field of secondary causes. But Huxley and others followed Kant and the German idealists in denying the knowability of primary causes. Dogmatically they insist that this is all we can know.
Devolution makes more sense of the data we have than evolution - evolution assumes greater complexity comes by so called natural selection - but the evidence in creation shows a lessening of the diversity of creatures not an increase in that diversity - we see millions of extinct creatures but not millions of evolved creatures from these so a coming away from original types of creatures rather than a diveresity - or if one wants to assume the diversity we see was in the dna of the original creatures and did not require mutations one can do that but one thing we have NEVER observed under the microscope is a mutated gene bringing about a good thing for a creature.