Not a bad email, and a decent follow up on the ones that are affected. It is also a reminder that killing yourself slowly at the workplace is meaningless. Management has no responsibility to you, and no promise is certain. It’s your responsibility to take care of yourself. My take, don’t be bitter. Take the severance as soon as possible and get back on your feet. Having Google on your resume is a very good thing.
Having Google on your resume is not a good thing depending on who's reading it. Googlers generally need to be extensively re-trained on reality outside of companies that cargo-cult Google's practices, and I'll have some questions about the moral compass of anyone who shows up with Google on the resume.
"Morally opposed to Google" affects a tiny sliver of professionals who boycott Google products or choose to use it despite allegedly being opposed to it.