I don't think I ever said that an EMT would amputate your finger. I said that you might get further injuries. For instance: embedded Tungsten fragments or in case of a prolonged problem removing the ring further tissue damage.
The main point of the person you were replying to was that the finger amputation thing is an urban legend because you can shatter a tungsten ring. And the point of my reply was that an EMT won’t amputate your finger. I just assumed that your reply was refuting that point.