Frankly, the manifesto-writer should be censured (note that is a 'u', not a 'o') for writing absolute nonsense. It reads like something a pre-undergraduate student would try to argue. For one thing, this is absolutely preposterous:
We can make software engineering more people-oriented with pair programming and more collaboration. Unfortunately, there may be limits to how people-oriented certain roles and Google can be and we shouldn’t deceive ourselves or students into thinking otherwise (some of our programs to get female students into coding might be doing this).
This person has clearly never actually given any thought to this subject matter.