Actors and directors improvise all sorts of things when blocking a scene that doesn't have specific descriptions about movement, and sometimes disregard those descriptions. Maybe that accounts for Guinan's defensive posture.
When I was performing in plays, I often wound up discarding about 2/3 of the stage business I'd come up with during rehearsals.
When I was performing in plays, I often wound up discarding about 2/3 of the stage business I'd come up with during rehearsals.