It’s not really about clarity, or even about accessibility (although both of those are great!): it’s about what a Web page is. A Web page is a document which can link to other documents.

> Links should absolutely be verbs

No, links imply a verb: ‘get.’ Buttons imply another verb: ‘post.’ It’d be awesome if there were ways in HTML to indicate other verbs, such as put and delete.

> > Get _Amaya_!

> That... doesn't tell me how to get Amaya.

No, it doesn’t: it is a document calling its reader to action. That’s something a document does: it tells a reader how to do something, or calls the reader to do something. Clicking is just an artifact of a particular technology at a particular point in time (heck, I imagine most people nowadays don’t click, because they are using smartphones — they tap instead).