I'm not saying this with the intent of harshly criticizing the author, but I admit it's surprising to me that someone (who had other options) would work for 14 years at a company they clearly came to believe was making the world a worse place.
But there have been a lot of changes in recent years, and Google is playing with fire in its military and government support projects (as well as struggling with the increased union consciousness that is permeating white-collar Silicon Valley culture at the FAANGs). I'm not profoundly surprised he finally decided the balance had swung too far.