It's worse than that - if it was dead then maybe someone could take over, but if it's a Zombie project (where the author is still convinced that he'll get back to it some day) then the code will never see the light of day again.
The distance indicator is useful, but you can get it in other ways, such as a Weakaura string that I think someone posted up thread (maybe that's what Pete has?) - the thing that really made Archy stand out was histories of old finds.
I'm using 18.104.22.168, just running it and Bugsack/BugGrabber. The latter two don't show any errors, hovering over the BugSack minimap icon says "You have no bugs, yay!", but pressing the Archy button only shows up the Artifacts window, not the Digsites window.