I don't agree with this analogy. It's not like google is offering to redo your site in AMP for you. You still have to do the lightweight optimization yourself.

I don't agree with this analogy. It's not like google is offering to redo your site in AMP for you. You still have to do the lightweight optimization yourself. You're just using a library that will guide you in how to do it by imposing restrictions like not loading from too many sources. It's more like people don't feel like following a weight loss program until a trusted professional outlines an easy to follow and precise method.