The genetic variation in any species is confined to a limited set of variables such as a finch beak’s thickness.
Purported examples of poor design usually represent opinions resulting from armchair critics’ limited understanding of the technical literature.
William Dembski and Robert J. Marks developed the concept of active information to measure the extent to which a search function appears pre-programmed to find some target.
One of most popular attempts at explaining the flagellum via cooption was developed by Nicholas Matzke.
This is a clear falsification of an evolutionary expectation expressed across many years, and widely held by a consensus of experts.