Yes, this is exactly it. For things that I do rarely, I would love to have a working natural language interface because I know what I want to do, but I don't know how to do it. Even if there were more efficient ways to achieve my goal, since I do not know what they are, the inefficiencies of a natural language interface do not matter to me.

In this sense, natural language interfaces are more powerful search features rather than a replacement for other types of interfaces.