I don’t recall seeing that dialog. If I saw it, I would be uncertain about the consequences of the action I chose. (I should add that I don’t understand the dialog regarding “rescued” components, either.)
KiCAD is developed and maintained by an international group of people. For many (perhaps most) of them, English is NOT their first language. Words, phrases, and composition that seems unclear or ambiguous in English was probably quite clear in a developer’s original language. There is some insightful discussion on this topic in the thread, “Non-devs: What do you think of the app names?”
In the sacred writings of the Hebrews and Christians there is a story about a time when all people spoke the same language. The engineers were having a grand time building cities and roads and generally working together to improve daily life. Then managers showed up and decided everybody should work on a colossal project that would even out-do what God had done. As you can imagine, God was not pleased by this so God made people start to speak different languages . . . . and technical communication has had problems ever since.
Dale