When I view a goal on the webapp the green/blue/(maybe other colours if I'm bad?) "time left" box is just a solid field devoid of text, until I add data, at which point it populates with the text of the countdown, briefly showing the pre-addition-of-data-time and then immediately updating to the post-addition time.

I presume this is a bug. The expected behaviour would be to show the countdown on initial page render even before any action is taken on the page.