Don't be hard on yourself. I recall times when Rustaceans eagerly marketed "memory safety" to mean "safety" in general. Sometimes even extending "safety" to mean "bug free".
I chalk up the confusion to true believers playing the motte-and-bailey game. When the marketing meaning feels good, they use it all over the place. Then, when the substance doesn't live up to the hype, the fans retreat to the technical definition. This is not a new phenomena: https://news.ycombinator.com/item?id=41994254