As we have seen there is an Elon unsupervised version but nobody knows who or how many are testing it.Included in the "stuff" was the sentence "Unsupervised FSD is trending well." In order for it to be trending at all, it needs to exist in some form, and it needs to have its performance measured.
You're free to argue that Elon is lying, if that's what you mean. But if he's not, I don't see any other interpretation.