I doubt the author has any comprehension of the errors involved in synthesis of a physical sequence from a text string, the mutations introduced into the sequence during the lifecycle of the organism, or the errors involved in sequencing the DNA back into an abstract text string. Life is largely accustomed to these errors and drifts of sequence, computer code is incredibly intolerant.

A serious discussion of this concept would involve encoding the information with some sort of channel coding and calculating the likelihood of any such program of minimal length successfully propagating itself.