TG's edit description explains that he is rebranding. Common rebranding tactics include leaving the old website up for 72 hours or longer (so that the bots have time to fetch your new site). After some time has passed, it is possible that the old website will cease to exist, at which point the usefulness of TG's edit will become clear: he preemptively saved us from link rot.
It is also possible that TG is not who he says he is, in which case his edit is probably useless.
I think that we should trust that TG's edit description is accurate and leave it alone. If the new link rots, then we can fix it later.