I’m afraid that data is over a year old and no longer holds true. Overall, across all ranks, Ana beats lucio by a good margin. The higher you go, the further she separates herself from him. Lucio definitely does not keep up with Ana, or Mercy for that matter.
That’s true, and is a good reason she’s a main healer.
No, she’s still a main healer, and in the higher ranks the go to for solo healing comps.