Probably just Mandela effect. I also remember this message that apparently doesn't exist. I was also a big player of Ultima VII so maybe my mental wires are crossed as the article suggests.
It’s also worth noting that it wasn’t exactly uncommon to have messages like that on exit. Apogee games did it a lot I seem to remember. Lots of DOS/4GW stuff too.
So the memory is… primed, so to speak.