Molecular clocks are a relatively simple concept.
It’s worth engaging him, since Swamidass is the relatively rare critic of ID who works at tackling arguments for design in a substantive fashion.
David Barash is an evolutionary biologist known for delivering a yearly talk to his students disabusing them of the idea that science can be reconciled with religious faith.
A central problem for theories of unguided evolution has always been the challenge of building complex biological novelties.
His choice of targets for criticism and for praise have a lot more to do with his particular agenda than the defects or merits of those whom he critiques.