I've seen ordinary users get frustrated with it, but they don't understand why. They don't know what AMP is, and they don't realize they are on an AMP page. For example, the URL bar says they are on Google but they are reading a Slate article. The web is already confusing enough, and AMP makes it worse. Many ordinary users think they are reading content from Google, like that famous CNN interview where a lady said, "I read it in Facebook"
Which leads to the question, why is google doing this? They, you, could easily promote AMP pages while not masking the real URL! The answer is simple, profits over what's best for users.
Edit: I just did a search to find the CNN interview I mentioned, copied the URL to share here, and look it's a google URL. WHY? https://www.google.com/amp/s/amp.businessinsider.com/trump-v...