There is simply no way for any unguided, unintelligent account of the unfolding of life to avoid the bane of helpful degradative mutations.
Most studies simply infer or invent some story about the evolution of a gene without any experimental tests.
Nobody in the ID community is capable of showing Dennis Venema to be wrong? Well, that’s a bit heavy on the attitude.
Anything that Simon Conway Morris puts his name on is of immediate interest, but this would seem to evade the most fascinating question of all in life’s history.