Oh, for sure. I think in default cases both the Character and Environment lists were meant to provide EFFECTS that are at the level of the whole group and the narrative. So adding a third category allows a designer to make the Environment truly about the setting/milieu/location and a Goal list then about the narrative l.
(If someone did want a d20, an adventure writer could fill up a 13-20 list as a pretty tight way to provide options for each scene or act in the story—almost like a Set Goal in Trophy, if you’re familiar).