Because we're on an irreversible trajectory toward integrating technology with our cars and houses, bodies and brains. If we don't control the software, then at some point, we won't control parts of our homes and our selves.
Last time I checked, humans today can't easily tinker with their own bodies and brains, they have plenty of known bugs and vulnerabilities, and many methods of altering their function are heavily regulated if not illegal.
While I support the author's idealism, what do you think will happen in this cyborg future when software can be physically addictive or kill you or change your personality? People have always been willing to give up a certain amount of freedom for a certain amount of security, and they will continue to do so.