A lot of people are going to "cheer" this move but this is yet another anti-web move that Apple has made without regard to standards or how it will affect other areas of tech. Apple has a clear record of flouting standardized technologies in Safari like breaking iframe sizing in iOS mobile and not supporting many common APIs and is very opaque about whether or not they even view the web as a first class citizen. The code I work on almost has as many Safari hacks as we have IE hacks.

If Apple would stick to just making great hardware and products and follow the standards like other vendors do then I feel like the whole tech world would be better off.

Edit: Apparently I need to spell out in more detail my arguments because if read at surface level people only focus on AMP. This isn't about AMP. This is about sharing a link to something you are viewing. You are currently viewing the AMP page and that might look a certain way or even contain a certain type of graph that looks a certain way because it's static and fast to load. If you click Share and send this to a friend they will receive an entirely different page that might look different than what you were seeing. I don't think it's a good thing that we can no longer trust sharing a page with someone else. Now the ultimate destination is being edited behind the scenes without you knowing. It's a slippery slope that, like other things Apple has done, have possibly bad consequences in the future. The road to Hell is paved with good intentions after all.