Clinton Nixon, the author of The Shadow of Yesterday, did suggest the term "story game" which was later adopted by the site story-games.com. But in his usage, story games were not a subset of RPGs or a category of funky RPG-like games -- he was using it to describe a superset of games, a broad umbrella that includes all RPGs, from D&D to Donjon, as well as games such as Universalis that are arguably RPGs and games such as Atlas Game's Once Upon a Time that no one would call an RPG.
But he was using a very broad definition of story: "A story is a linked series of events which contains one or more conflicts." This would cover what goes on in Forward... to Adventure! as much as within his own games. As someone who likes many different kinds of RPGs, many different kinds of games, he was trying to get past all the ghettoization of games and arguing about what is what.