Undoubtedly the source of it, and that it absolutely exploded with people soon enough who had no background in that sort of gaming almost certainly led to it becoming something of an evolutionary dead end In gaming styles.Never met anyone who thought it was required since started playing in ~1978. I wanted to do the whole domain thing as a player but never found a DM or other players who were into it....to much book keeping and responsibility I guess. This whole domain thing being part of the creators and their original players vision I suspect was due to their coming from miniature war games.
I kinda wish someone would officiallY make something old school ish that flipped the script, and the individual character scope stuff really was the side show rather than the main event again. I don’t want it as the majority style overall, just a well documented and understood style.