Accelerated Mobile Pages (“AMP”), a Google project that purportedly seeks to improve the user experience of the Web. In fact, AMP keeps users within Google’s domain and diverts traffic away from other websites for the benefit of Google. At a scale of billions of users, this has the effect of further reinforcing Google’s dominance of the Web. publishers should not be compelled by Google’s search dominance to put their content under a Google umbrella. The Web is not Google, and should not be just Google.
— source ampletter.org