Prove? If @Hans_Oddcraft had posted it, I would have said that it was highly likely that it did exist and that he used it to make the video, but this is @caleb_Larkmagnet1 we’re talking about here, who practically lives in the Aetherlight game as his primary digital residence and, to my knowledge, is not a programmer.
If you play the game enough times and for enough hours, by sheer number of repetitions you may arrive at that result. As the old adage says, a stopped clock is right twice a day.
(Incidentally, Hans did make some Python tools for the Aetherlight, but I think that was just chat save. I don’t recall an aim bot off the top of my head, otherwise I have to admit that I would have been very tempted to install it immediately. I’m terrible with the spinner. However, messing around with the code can get you turned into a giant snowman next to the Snowmoorian great engine and banned from the game forever, so I wouldn’t necessarily be so inclined to risk it.)