I think it serves even better as a metaphor for software engineering's future than as a forecast for the future of farming. As you suggest, farmers already had to make the "transition" over the course of the 20th century. A farmer from 1926 wouldn't recognize his counterpart today. They would have nothing to talk about. Software people, though, are still twentieth-century programmers at heart, who are just starting to feel their way through the Kubler-Ross process.

Really a great story, and to the extent it was AI-written, well... even greater.