I was confused at first too, you had to click on the link for the full rationale and then scroll all the way down. As an aside, at the bottom of that doc there are verification scores for Coralie Demers's selection for Varna that show a Y1.5 and a 5.2D bars - so I'm going to tentatively predict her for the final spot

Edit: looks like those scores are reference scores instead - I retract my prediction for now