I too got the Google Now Card for this, and to be honest, I doubt I'd have stumbled on your blog. I'm glad I did find it, and I can understand your frustrations. Several people have given advice on how to revert back, so I'll skip that. There are automated ways of handling millions of changes, so I think you really need to find a method that works for you and your situation. I also am very against AMP, it's not useful for smartphones, but dumbphones, sure. The real problem is the controlling factor that whereskarlo stated.