It doesn’t surprise me that others have known about this material and have linked to it in the past or collected it up. It was new to me and possibly several others that haven’t been an active part of this community for the last two decades.
I’ve been a DS fan since the mid 90’s. And have followed it for years. I don’t play much, but I. Cannot. Put. The. Setting. Down.
What surprised me about the info was the way I came upon it. It was not from the website posting the material originally or scouring the website. Which I was not following in 2003.
It came about by me Looking for the word “Athas” In 3e published books. To see if anyone had left a reference to this “lost” world in 3e. But the only mention of “Athas” in any 3e material is not in the official rules but in the cover page of the Expanded Psionics Handbook. There it references the 2e book of Psionic Artifacts of Athas among other 2e material. So I decided to check the Sandstorm book to see if it had other inspiration.
Interesting digging up 20 year old rules for a game that is 30 years old.